Here in Ontario they "banned" phones in class/school and the teens just ignore it and the teachers are unable/scared to enforce it. As parents we've tried over and over with both our kids to lay down the law -- including taking phones away, consequences etc -- but the attitude is intense with both them and their peers and enforcement becomes very difficult once they're out of "child account" parental control range.
It's a shitty time to be a parent of a teen.
How about if we target the social media apps for their predatory algorithms?
the next movement would be blocking LTE/5G during courses. No social media = dumb phone
Canadian schools operate under the principle of in loco parentis. Your administrators are just unwilling to do their jobs. If they laid down strict policies of zero tolerance and consequences for offenders that inconvenience the parents there would be compliance. Any parent not on board with such policies can send their kids elsewhere.