When in a story someone or something [[ByTheEyesOfTheBlind can only be seen by a select group of people]], in an overwhelming amount of cases those people will be the children. Why? Possibly because ChildrenAreInnocent, and they do not [[WeirdnessCensor automatically disregard the unusual as impossible]]. This can lead to an AdultsAreUseless scenario, where the child can lead their parents straight to the creature and even talk with it, [[NotNowKiddo but the adult simply cannot tell that the creature is there]].

There is also the idea, closely related with the concept of the {{Masquerade}}, that all the fantasies one had as a child were in fact real, but people started denying them to be as they grew older. This is usually seen as a natural process that all people are subject to, although [[{{Muggles}} some]] are more seriously affected than others. [[ImaginaryFriend Imaginary Friends]] and Santa Claus are typically presented as this. There is AnAesop about [[GrowingUpSucks losing something important part of yourself]] with losing [[ChildrenAreSpecial your inner child]] in stories that feature this idea. Occasionally you get a rare adult who is exempt from under the effect of this, usually because they have [[ManicPixieDreamGirl kept their childish demeanour and might be viewed as somewhat strange]] by normal society. Another grown-up who is affected by this but is still able to acknowledge the existence of the (to him) unseen world (out of faith or from second-hand experience) is also very common. Some coming of age stories present this as a tragic but inevitable process as the character is fully aware that this is happening to them, gradually losing their memory about how things used to be.

Subtrope to ByTheEyesOfTheBlind. Sister trope to InvisibleToNormals. Compare AdultsAreUseless, and ChildrenAreSpecial.

----
!!Examples:

[[foldercontrol]]

[[folder: Anime and Manga ]]

* The forest spirits in ''Anime/MyNeighborTotoro''
* Zashiki Warashi in ''UruseiYatsura''.
* ''SpiritedAway'' might fall under this, although it's difficult to say for certain since the only human adults around are completely oblivious at first and later under a spell.
* The entire world 'Nega Earth' is 'unavailable to adults in ''ElementHunters'' due to needing a particular portion of the brain which decays once they reach a certain age, and only shows up in a select few children. The adults are still far from useless though.
* Only young children (for example, Amu's sister) or those who have Guardian Characters themselves seem able to see the Charas from ''ShugoChara''.
** Not so true; Adults who had Shugo Charas (Nikaidou and possibly Tsukasa) are able to see them, and Yukari explains the reason she can see them as "Since I knew those things (Shugo Charas) existed, even I could see them".
* When Taiki, Akari, Zenjiro and Shoutmon return to the human world midway through ''Anime/DigimonXrosWars'', only the trio are capable of seeing Shoutmon's flickering miniature manifestation; Taiki's mother can't, even when Shoutmon is trying to talk to her. When Tactimon turns up and Shoutmon becomes capable of existing properly in the real world to fight him, though, people are able to see them.
* Animals, children and in one case, an old lady, are the only members of the general public able to notice [[MyLovelyGhostKana Kana]]. Otherwise, only her lover, Daikichi, girl friend, Utako, and to some extent her friend, shopkeeper Goro, are able to interact with her, due to [[ThePowerOfLove their love for her and vice-versa]].

[[/folder]]

[[folder: Comic Books ]]

* The angels and demons in ''PS238''.
* In ArchieComics, only adults can't see Santa's helpers, like Jingles the elf and Sugar Plum the fairy. In one story when Jingles stands in for Reggie at an Archies concert (He wears a costume so people can see him), he invites his fellow elves, leaving the adult portion of the audience wondering why the first few rows are empty.
* In the series ''LockeAndKey'', adults are generally incapable of perceiving magical things.

[[/folder]]

[[folder: Film ]]

* Angels in ''Film/WingsOfDesire''.
* In the Kirstie Alley tooth fairy movie ''[[{{Film.Toothless}} Toothless]]'', the tooth fairy can only be seen by children who have not yet lost all their baby teeth.
* In ''ThePolarExpress'', the bell from Santa's sleigh can only be heard to ring by people (mostly little kids) who sincerely believe in Santa.
* In ''Film/{{Jumanji}}'', the Jumanji drums luring people to uncover the game can only be heard by kids.

[[/folder]]

[[folder: Literature ]]

* OlderThanRadio: Goethe's poem ''Der Erlkönig''... or, according to an alternate interpretation, the child was hallucinating the Erlkönig as he was dying.
* Inverted in the ''HisDarkMaterials'' trilogy; the Specters from Cittŕgazze can only be seen once you reach puberty. Unfortunately, as soon as you can see them, ''they'' can see ''you''...
* In ''PeterPan'', only kids can make it to Neverland.
* In ''Literature/MaryPoppins'', it's mentioned that ''very'' small children can see magical creatures, talk with animals, etc. They lose the ability around the same time their first teeth appear.
* ''[[http://www.readbookonline.net/readOnLine/7251/ Aladdin's lamp]]'', a poem by JamesRusselLowell.
* On the ''Literature/{{Discworld}}'', Death can only be seen by those whose minds haven't been socially programmed to edit him out. This mostly includes children, who see him as the skeleton he is instead of a really thin man. And cats.
** The same applies to the titular ''Discworld/{{Wintersmith}}''. Only children could hear him since adults "knew" that invisible creatures don't talk from out of thin air. The only other humans who could are [[RobeAndWizardHat the ones with pointy hats]], who have trained themselves to see what's really there.
* Only children can see the halfling creatures in Clifford Simak's "No World Of Their Own". That is, until someone invents corrective lenses. The difference was not innocence, but brain configuration.
* This becomes a minor plot point in the later part of Zilpha Keatley Snyder's ''The Changeling''. Little Josie, who [[ChildMage sees all kinds of things]], says she saw and talked with [[NotSoImaginaryFriend the ghost mother Annabelle]] of the burnt-out house, who gave her a bunch of dried flowers. Ivy and Martha didn't see her, although both had clearly visioned ImaginaryFriends when they were seven.
* In Stephen King's ''Literature/{{IT}}'', only children can deal with "It" because they have not lost the power of belief.

[[/folder]]

[[folder: Live Action TV ]]

* In the ''Series/BuffyTheVampireSlayer'' episode "Killed by Death", Buffy thinks the MonsterOfTheWeek can only be seen by children. [[spoiler:In fact, it can only be seen by individuals with a high fever.]]
* Ghosts in ''Series/GhostWhisperer'' can sometimes be seen by children, as well as [[ChosenOne Melinda]].
* One episode of ''Series/{{Charmed}}'' sees the sisters helping a young girl protect the fairy kingdom from trolls. Unfortunately, fairies can only be seen by children (or those who believe in them).
* Back when Bob Saget hosted the show, AmericasFunniestHomeVideos ran a fake trailer clip sent in by viewers, set up as an ad for a new sitcom, ''I Live With the Ghost of Abraham Lincoln''; the basic premise of this "show" was that [[ExactlyWhatItSaysOnTheTin an average American family came to live with Abe Lincoln's ghost]] and the kids get into all kinds of wacky adventures with him because one of the twists is "Only kids can see him!"
* In ''QuantumLeap'' only children, crazies and animals can see Sam's holographic guide Al.
* The Rainbow Line in ''Series/ResshaSentaiTokkyuger'' requires [[LargeHam IMAGINAAAAAAATION]] to see, meaning that most adults can't see it.

[[/folder]]

[[folder: Tabletop RPG ]]

* Any and all monsters in the TabletopGame ''TabletopGame/LittleFears''.
* Something similar applies to boogeymen from ''Dark Tales & Disturbing Legends'', a {{Ravenloft}} supplement.
* This trope is a major component of ChangelingTheDreaming. Childling characters have the most glamour, and therefore can easily perceive and interact with the chimera and other fantastical creatures around them. As a character ages, they slowly lose touch with their glamour, becoming trapped in the banality of the real world.

[[/folder]]

[[folder: Video Games ]]

* The ''VideoGame/TheLegendOfZeldaTheMinishCap''. In this case, it's the Minish/Picori people.
* ''VideoGame/AnotherCode''/''Trace Memory'' plays this strait with ghosts, complete with the "some adults can see them" variant at the end of the first game with [[spoiler: the kindly boatman who decided to stick around to make sure they got off the island safely]]. Then again [[spoiler: Bill was also implied to be able to see D just before falling to his DisneyVillainDeath]].
* The Domovoi in ''VideoGame/QuestForGloryIV'' are small, hairy, imp-like creatures that live in the town buildings and bring good luck to the occupants. They can only be seen by children or special people, and with the latter it's only when they need help with something. The Domovoi you speak to specifically mention that you're obviously special somehow.

[[/folder]]

[[folder: Web Comics ]]

* In the webcomic ''{{Weesh}}'', only children can see the title character.

[[/folder]]

[[folder: Web Original ]]

* The original stories surrounding [[TheSlenderManMythos Slender Man]] had him being only visible to the children he would eventually kidnap.
* The imaginary friends from the Court of the Lost in {{Mirrorfall}} can't be seen parents, thanks to the ability to be selectively visible.
* Creepypasta ''DarthWiki/CandleCove'' tells the story of a TV show that adults only see as static.

[[/folder]]

[[folder: Western Animation ]]

* Gazoo in ''TheFlintstones'' can only really be seen by children, as well as Fred and Barney because they found him (although it's suggested that they have child-like intelligence).
* Youngblood in ''WesternAnimation/DannyPhantom'' can only be seen by children. That doesn't include children who think they're adults.
* A flashback episode of the second ''[[WesternAnimation/TeenageMutantNinjaTurtles2003 Teenage Mutant Ninja Turtles]]'' cartoon featured a skeletal demon who was able to do this thanks to an amulet he wore.
* The ''FairlyOddparents'' can be viewed by babies without triggering the need to go away forever.
* Subverted in ''WesternAnimation/FostersHomeForImaginaryFriends'' - the friends remain visible to the whole world no matter what age.
* Played with in ''WesternAnimation/TeenTitans''. One of the baby heroes in the final season had a companion who may or may not have been an ImaginaryFriend. It didn't become visible until Raven admitted she believed in it and it was no longer afraid of Raven. The eight foot tall nightmarish monster bear was shy.
* In ''WesternAnimation/WinxClub'' when the fairies travel to Earth in one episode and take their pixies along, we learn that on Earth, only children and animals can see pixies.
* ''CodenameKidsNextDoor'' apparently has this in an extremely powerful 80 percent or such Masquerade. Adults are either useless idiots locked in a crazy fantastic illusion or villains almost all the time. Seriously, one time the candy pirate Sticky Beard was driving his ship on land and instead of using freaking wheels, causes a deep crack in the ground by plowing through the street, causing houses to be crushed to pieces and the road broken. Imagine what kind of technology or magic can censor reality to that degree so people view a minor earthquake in precisely that matter.
** Of course, considering how often streets are needlessly ripped up, maybe ol' Sticky also works for the DOT.

[[/folder]]

[[folder: Real Life ]]

* RealLife: There is an audio range that is primarily only heard by young people. You can read an article about it [[http://www.engadgetmobile.com/2006/05/25/stealth-ringtone-can-only-be-heard-by-teens/ here]].
** Even if you have the hearing range to pick it up, sounds this high-pitched are still easy to overlook unless they're especially loud, because it sounds pretty much the same as tinnitus.
* In an experiment put on by the Washington Post, on Jan. 12, 2007, Joshua Bell (if not the top living violinist certainly in the top five) took his 3.5 million dollar Stradivarius down to a Metro substation in Washington D.C. and played classical music as a busker. It was captured on film by hidden camera. Of the thousand people who passed him by, only seven adults sufficiently recognized that they were listening to something special and stopped to listen to him play (and only one recognized him). But on the film you can see most every child who hears his obvious skill brighten up, look around, and tug desperately at their parents who - having places to go and things to do - relentlessly bully them along. (He made $32 over about two hours, not counting $20 from the man who recognized him.)
* People with the kinds of brains that make them hypersensitive (Autism spectrum, Asperger's, AD/HD or Highly Sensitive People) often notice things others can't. Imagine being a kid and being fully aware of the blink and buzz of fluorescent lights, or the itchiness of certain kinds of fabric, or that almost inaudible whine from electronics (which itself falls into the range of high-pitched sounds that can usually only be heard by young people), and being driven slowly insane by something no one else, least of all adults, seems to notice. People without hypersensitivity may be able to perceive some of these things, but generally don't ''notice'' them, whereas the hypersensitive have great difficulty ignoring them, or are ''unable'' to ignore them. Some people even have this problem well into adulthood. This is why Irlen filters (the strangely colored "sunglasses") help people with these conditions; they're customized to block out whichever light frequencies disturb that person's brain.
* Children are reportedly more likely to have ESP abilities and see ghosts. As for whether this means that children are more psychically attuned, or that they have good imaginations...
** Spoiler alert: They don't.
* Some cultures believe that [[TheFairFolk fairies]] or ghosts can only be seen by children.

----