Yes, peer pressure it a contribution. Getting your friends to join a game with you, for example. Solving it is difficult, and not to sound cliche, but just say no if they want to game. Unfortunately I don't think schools can do much. At the moment, in some countries, if a school takes away something from a student, it appears as oppression. So if phones are taken away because a student is playing Fortnite, it's oppression. Plus with lack of funding and low pay of teachers, I don't see them really putting the effort to stopping it unless their job is on the line.