I'm afraid my kid might like some of the weirder shit if she could find it. She's and odd duck.
Mostly she likes to watch videos of kids and animals dancing and a videos made by a pretty slick kid friendly magician. I only casually supervise her YouTube experience. She's probably seen some inappropriate stuff but not terribly inappropriate and kids need to be exposed to some left field shit so that they don't crumple up like tissue the first time they get hit by stiff breeze.
The absolute worst thing she's seen is when I was trying to find a stream of the despicable movie Jumanji for her. It wasn't being streamed on any of the crap we are subscribed too, so I started looking at putlockers. A decidedly XXX rated add came up on one of them. Weeks later she said "Dad, I've been thinking about what that man was doing with his penis". Baaaagghh buuurrrggeee gaaahhh, fuck my life.