Comment by TheOtherHobbes

And then progressively banned in public places.

Which won't work. The model isn't an exact match.

I'd rather see hard content filters in certain contexts than a complete ban.

No social media sites, games, or messaging would remove most of the problem.

But the ultimate driver of addiction is ad-tech, and all of these measures would cause a significant hit to the ad industries.

So in practice it's easier simply to ban phones.