How do I make galaxy j7 only be used as a phone? No wifi or data usage?

[AC Question]

My son is grounded. I need him to be able to call me, but I don't want him to be able to play any games on wifi or data. Is there a way to do this??

 

[Rukbat]

Airplane mode, but most kids can defeat anything you can do.

 

[Tim1954]

Get him a dumb phone.