This is very true - instead of taking little johnnys computer away from him, the parents will probably get mad at the provider for little johnny going over his limit.
My brother is a deputy sheriff, one night around 1am or 2am he sees this car weaving across the lanes of the road. He pulls the car over, and finds out the driver is stoned. The kid is like 17 years old and has been smoking some weed. Instead of arresting the kid, the parents are called to come get the kid and take the car home. My brother was doing the kid a big favor, as compared to being arrested and impounding the car.
When the mom gets to the scene, she starts yelling at my brother for pulling her son over. In her eyes, the police have no right to pull someone over for weaving across the road and driving dangerously.
Sometime people amaze me.
So if little johnny goes over the limit, the parents are likely to blame the provider instead of admitting that their son was at fault.