Earlier quoted context omitted.
Probably because the people complaining are not the same ones who are leaving their kids unattended with these videos. This thread is full of parents saying that they banned youtube for their child because these algorithmic videos have began to fill all youtube searches for kids. I think it's more of a "why did bots and inattentive parents fuck it up for the rest of us."
Enough with the victim blaming. I think this is a serious problem and I don't have any children to leave unattended.
Think about it: scientific consensus is pretty clear that the content makes no difference there should be no exposure to any kind of screen for kids under 6, then maybe a tiny bit until 10-12.