Well, yes but the other problem is this is putting authoritarians in charge of more stuff. I had a comment comparing this to allowing people to eat too much food and that is literally where the logical outcome of this sort of thinking goes - it happens in practice, that isn't some sort of theoretical risk. The more the government decides what people can and can't want to do the worse the potential gets when they make mistakes. And this is further normalising the government making decisions about speech where they have every incentive and tendency to shut down people who tell inconvenient and important truths.

The risks are not worth the rewards of half-heatedly trying to stop kids communicating with other kids. They're still going to bully each other and what have you. They're still going to develop unrealistic expectations. They're probably even still going to use social media in practice.