Technologies when not learned by the people to use in proper ways, too often can be used against people by people with vested financial interests.
Social Media worked out that way. So did device addiction.
It's great to find ways to socialize, and those ways existed before, and will also exist after.
The exclusion of current forms of social media and connectivity as default doesn't mean better solutions don't step up.
I'm not really sure of the tying of schools to phone bans in schools. Schools aren't perfect, but they have a legal liability to keep kids safe (or safer). Devices and social media don't.
A large part of this is life coming at parents faster than they can keep up, let alone stay one season ahead of their childs growth. This would probably be a way.
Societally, rules and laws, including public health are a social contract and agreement on how to live together in a tight place.
Inside the home, though, is the opportunity for parents to learn and expose as they wish.
Solving today's social media can solve a ton of problems, or at least provide an impetus for it to improve. Schools are supposed to be safe places for kids, right? And the entire unfiltered outside world was coming into it via device.
For example, one solution is parents getting literate in tech enough to know how to lead young people before this even becomes a conversation. One way to do this is to offer unlimited screen time for creating, and much less for passive consuming. The generation that wants to experience the real world through a little screen has it backwards, and that's coming form the people who built the little digital world too.
I'm not anti-technology for young people at all. I'm anti-addiction and anti-manipultion by unlimited people and parties interested in reaching eyeballs.
Parents, legally, are required to provide a safe and growing environment.