What there is 100% a precedent for prohibiting certain activities from minors because their brains are undeveloped.

In the future we will view a child spending hours a day on Tiktok how we currently view a kid smoking cigarettes. It is creating an entire generation of anxious, ADHD addled kids who struggle with school and focused work of any kind.

No, those kids can't have whatever they have if they're under 13, 14 or 18, depending on what it is that they have.

Do you have children? We are not bad parents just because we prohibit our children from doing something that is a "common" practice for many other kids in our circles. As for inhibiting socially, do you realize that multiple major publications have just been putting out articles in the past month about adults isolating more than ever? If anything, social media is a contributing factor to that social decline. I'm grateful my kids are young, and were not born a decade earlier because many kids I know that were born around that time have suffered with smartphone access. These are not arbitrary standards--it is a widely understood problem.