[Tervuren]

I've done volunteer work that takes large groups of inner city youth out and away from the city, often for the first time in their life.

The change in behavior with just five days of no cellphone service is amazing.

The first two days can be rough.
The last two days are great.

I'd rather have a smart phone free school zone than a gun free school zone.
While I would agree the responsibility is with the parents to teach discipline, and let the teachers teach academic fundamentals.
In counter to that, why allow distractions into your learning zone.
Would you approve of a school that allowed juggling rainbow monkey clowns that hang out their "front tails" into your kid's classroom or library?

On another note.
The USA has a foundation of identify improvements either by local invention or by implementation of the foreign.
What has changed is we are now implementing foreign or local aspects that are not improvements.