That is foolish. YouTube has some of the best educational content ever made. I suppose you could use yt-dlp to download all of 3Blue1Brown or other excellent educational channels.
This is the approach I've settled on. My kids get a very small amount of actual youtube time each week. If they find a new channel they really like, they pitch it to me. If I think it's good enough, I download the whole thing with yt-dlp for them. It works pretty well for us.
