[ratg13]

If you don't have any control over the devices, you're fighting an uphill battle to control the students.

There are more students than teachers, and students are more likely to take cues from other students rather than teachers.

Leaving students to their own devices and hoping they make the right decisions would be an exercise in futility for class sizes over 15ish students.

[janef0421]

I don't think trying to control students is the right idea. Teenagers are their own people with their own values and desires. You aren't going to be able to have a productive relationship with them unless you respect that, and I think the failure to do so is at the root of a lot of the problems we see. Of course, that goes far beyond phones.