My son, who recently graduated high school, went to a school that banned phones but insisted on laptops (providing them for the kids who couldn't afford one). He said it was ridiculous, as none of the kids had any problem using their laptop for anything they would have used the phone, which was mostly texting, scrolling social media, watching videos, and playing games. Even when the school tried to lock down services, as soon as one kid found a way around it, they all did.