We did _not_ need a study on this. Schools used to ban mobile devices at the door and at some point gave up, like everything, someone gave up. Private schools

We did _not_ need a study on this. Schools used to ban mobile devices at the door and at some point gave up, like everything, someone gave up. Private schools in the UK still have this policy and are still churning out better grades and students regardless of whether they charge admission or not. Public ones have turned into a nursery ruled by the kids from that X generation of handouts. Just go back to giving a dam and it will fix at least this thing. But I'll get stick and b$ for students being social online these days now I bet...