I'm not sure about YT because there were VERY toxic people (LisaGamingRoblox for example. She's very toxic.) and a bunch of inappropriate and bad channels that YT hasn't banned yet (if you know Bella Delphine, her channel hasn't been banned, yet she posted inappropriate stuff.). Also, if you're using YT for free, you would be pissed off with the ads coming before or during the video you're watching. (I was gonna watch scary stuff, Roblox Piggy stuff and all that until the ads ruined it.) It's a great app for posting videos, but all of the stupid stuff and COPPA ruined YouTube. I have mixed feelings about the site. -_-
ALSO, don't forget about the bots that spam comments on EVERY single video. (recent bots have inappropriate content.)