> I think you're putting too much emphasis on The Algorithm. It's a problem, and I agree it's probably the worst offender, but similar problems were observed decades ago with children (and adults...) allowed to watch too many hours of uninterrupted TV.
Yeah that's fair.
> I agree they are a wonderful invention but I'm not sure grade school students need to be connecting to anyone, anywhere throughout the entire school day.
Well to their friends in other classes ("Wanna go out after 3pm lesson").
Additionally, and socially, smart phones, if banned, would be instantly seen as a status symbol. And it would also accelerate strong anti-autority sentimentality. The kids won't understand it, hell adults wouldn't. So it's also the case that you can't really ban them without really adverse social effects.