> YouTube is such an invaluable learning resource that I would have serious qualms about denying a school-age child access to it.

Give a 5 years old unlimited access to youtube and witness the cesspool it is. Nobody is saying youtube is 100% bad, but people who don't know better (kids for example) are easily manipulated in watching the most brain rot content you can imagine, for hours and hours. It's an ocean of shit within which you might find a few gems if you know what you want or if you get extremely lucky.

https://www.youtube.com/watch?v=v9EKV2nSU8w

You're describing the whole internet, and also most of society. Maybe children should be banned from everywhere.

> Maybe children should be banned from everywhere.

Content wise they used to be until very recently, what did I have access to as a kid before internet ? Some books from my parents, some booked from school, whatever was allowed on public TV when my parents allowed me to watch it, maybe the odd porn mag from the older brother of a friend of a friend. That's very tame compared to what you have access to from even heavily censored search engines like google