I'm personally no fan of YouTube myself, as it constantly recommends channels and videos that I have no interest in and that I often find to be despicable based on my actual interests. I loathe that it does this, but I have the choice of not using it.
What would you prefer... Every site you going to require that you sign in and verify your identity before being able to use the service, and sign some type of agreement that you won't let a minor or child access it? Same goes to cigarettes and alcohol by the way.
Please don't break the site guidelines by being snarky and taking threads further into flamewar.
Other organisations manage to provide ad-supported video content with very few problems. You can sit a child down in front of UK Channel 4 or ITV children's content and know that the ads won't be for alcohol or gambling or horror films, and you'll know the video will be age appropriate.
There are content creators on Youtube who target children. There are children who want to watch that content. There are parents who'll allow their children to watch the content. All we need now is for Youtube to not place horror film ads in that content, and not to start recommending videos to the child where people are yelling "DIE YOU FUCKING $racialslur".