These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternate Character Interpretation: The Big Bad Wolf. While people know him to be a predator who tricks a little girl into telling him about her grandmother, other versions have a more disturbing take on him. The song, "Little Red Riding Hood", has him be a Stalker with a Crush who just wants to walk with Red through the woods. Other darker versions have him be a sexual predator who tries to take Red by force. Yikes.
Big Lipped Alligator Moment: In some versions where the wolf tricks the girl into eating some of Grandma's dead body and blood, a cat suddenly comes to call her a slut because she eats her grandma... then the cat is never heard again.
Critical Research Failure: One of the primary instances to invoke this with fairy tales. Lots of people are unaware of the history
Such as Perrault so far being the first known to ever used "red" importantly in the story
Bringing up sex symbolism even though the versions where sex was in the story predate both Perrault and Brothers Grimm and were not included in their versions.
Werewolf inclusion, a lot of people think this is a modern addition even though older versions did indeed call the wolf a "loup garou"
Freud Was Right: A common interpretation of the tale is as an Aesop about a young girl's burgeoning sexuality, with the wolf standing in as a sexually aggressive man. The red hood is often interpreted as representing menstruation, carnality, virginity, or sin in general.
Nightmare Fuel: Perrault kills off Grandma, then has Little Red tricked into becoming a cannibal, and then she too meets a gruesome end in the wolf's jaws. Sleep tight kids.
Rule of Symbolism: There are lots of possible underlying meanings to the story, mostly to do with growing up and/or sex. The color of the girl's hood is usually given some significance — even though subsequent collection of French folk tales found that it was a detail that Perrault added; the folk tales do not specify the color of the hood. A more likely symbol occurs in the regional variants that have her choose between a Path of Pins and a Path of Needles - girls learning to be young women were said to be "gathering pins," while needles had a definite sexual meaning (prostitutes would even indicate their profession by wearing needles in their sleeves).