Then we'll just have to disagree with each other then.
Whether it's their target audience or not, though, that doesn't change the fact that it's a significant slice of their audience and will probably be catered to at least in some way.
"It's liberating, realizing you never need to be competent." — UltimatepheerI became a Nintendo fan recently, and I'm 21. Also, I don't know about you, but I doubt that many kids under 12 particularly care that the KBG on Robin's dthrow was reduced and the BKG was increased in patch 1.1.0 so that he now has a kill confirm out of grab at around hundred percent on middleweights, or that Ganondorf's nair was reworked so it's a true combo from dthrow at 0%, or that the shield damage on Marth's shield breaker needed to be nerfed from 30 to 25 in order not to cause guaranteed shieldbreaks uncharged after the shieldstun formula was reworked in order to make the game punish excessive shielding more strongly.
My point being, Smash is hardly only catered to kids.
Given Brawl had M-rated only at the time Solid Snake and Cloud Strife from the T-rated (and notoriously most vulgar, lewd, and otherwise objectionable Final Fantasy in the franchise)'s inclusion was a megaton announcement that set the internet on fire, I don't really think little kids are the only audience this game targets.
I got sidetracked. I'm mainly just trying to say we're not the only people who exist.
It came out all muddled, as usual.
"It's liberating, realizing you never need to be competent." — UltimatepheerOkay. I've been playing my brother and this is what happens:
1.He spams projectiles
2.I close in, he rolls around
3.I f-smash and miss, OR I try to roll behind him
4.He rolls right behind me, every time without fail no matter who he's playing as, directly behind me.
5.He grabs, throws, follows up if he can
6.Repeat forever For Massive Damage.
Every.Fucking.Time.
And I can't beat it!
"I have not failed. I've just found 10,000 ways that won't work." -Thomas Edison

This is discussed on Smash's YMMV page, under "Animation Age Ghetto".