For a long time I just wondered what to me seemed like odd obsession to who pays kid's/young adult's phone bill. It something I have never been heard mentioned in my country. I mean few years back kids had max in their accounts and even lately I have heard of situations where younger child has bought lots of soda etc. from vending machines and caused quite a bill, but I have never heard anyone talking about if they should pay their young adult kid's phone bill or not. Much less seen mobile costs being mentioned with some major costs like car insurances etc. Our own difficult child is currently officially living home (not in reality but it makes sdome things easier) and we get his more official mail including his phone bills. If he is coming to visit soon we may give them to him if not we tend to be too lazy to post them so we pay them instead and just tell him it has been taken care of. His and Joy's bills for unlimited 4G data and unlimited calls and texts inside the country are about 30 dollars each. There may be some extra if he has paid a parking or some public transport ticket with the phone. I have smaller packet: unlimited 3G with 21 mega max speed and 300 hundred minutes and 300 texts, it is around twenty dollars a month. I have hears the one thing that is cheap in my country are mobile phone charges but I just heard someone saying that this type of services would cost a really a lot more in US or UK. And I don't mean 10 or 20 % more but really a big difference. Now I'm curious how much using modern smart phone actually cost in your neck of woods.