It isn't any different, parents can already be sanctioned if they let those kids do those things.

The thing is, the vast vast majority of kids are not doing those things and are savy enough not to. It's the same as the alchohol and drugs for teens. Yes there are some that go to far and even get hooked on hard stuff, but most don't.

Don't get me wrong, I think social media is bad for both kids and adults alike, but predation is not its biggest problem. I'd say the biggest problem is the attention black hole it creates along with a misaligned sense of self. But that's a harder story to sell then 'super scary bad thing is happening so we need to do super extreme thing to prevent it'.