Is there any way to turn wifi off and lock it?

Hello XDA, I'm curious if there is a way in either the standard ROM (Which would be Sprint to use with Ting) or a custom ROM to be able to turn off the WiFi and lock it to make it kid friendly? Ting allows data control from their end so it's no problem there, just curious if there is a way to put a PIN on the ability to turn WiFi on and off. Thanks!