[mytailorisrich]

As a parent, too, this is a parental responsibility, schools can (and do) ban smartphones as well.

For under 16 there are tools built in Android and iOS to control and limit usage that parents can use. And at home parents can obviously also take the device(s) away.

[TitaRusell]

If there were drug dealers selling meth outside schools we would not leave it up to parental responsibility.

[28304283409234]

It's both, in my opinion. As a parent I find I need support from school/authority. And I expect vice versa.