Phones are banned on school ground here and its working. My kids have never been allowed social media here at home, and they don't see friends doing it because

Phones are banned on school ground here and its working. My kids have never been allowed social media here at home, and they don't see friends doing it because phones are not allowed at school at all. Neither give a shit about their phone and we have to force them to take it if they are going out so we can call them if we need them.