I would love them to be banned in schools.
My DS refuses to take part in any lunchtime clubs because he would rather sit and play games on his phone.
They are supposed to keep phones in bags during lessons but it's clear that only some teachers enforce the rule. I know my son is distracted by his phone in lessons.
The school I've chosen for my DD has a complete ban on phones and they are not even allowed to have them in their bags. They have access to a phone in the pastoral care department for any issues that come up during the day.