“parents can call up and ask att/verizon/sprint/tmobile ect to take texting off and 5 sec later the kid could call and put it right back on and parents who dont analiza the bill might not notice”
I don’t knwo what plan you are on, but Verizon and AT&T do not allow anyone to make changes to my phone plan unless I personally make those changes. They ask me a pre-arranged secret question to which only I know the answer, to verify that it is I who am speaking with them. My kids would not know that information, as I picked something that I have never told them (like the name of my third grade teacher). I am sure other phone plans would arrnage such a thing so as to avoid kids changing the plans to include nonacceptable features. And a parent who does not check out the phone bills, is negligent even for himself or herself. What if there are errors?