The problem is not the whole of social media per se, it is the monetization mechanisms used in the social media platforms. I'd think it would be better to ban the addictive algorithms, although it would be difficult or impossible to define precisely what to ban then.

Hacker News is a sort of social media platform, but I would have no problem with my kids using it without any sort of restrictions. The same is not true for Tik Tok or even Facebook.