Parent’s limiting children’s screen time to two hours a day is not in their best interest. Parents should tell their children to shut off their screens when they feel it’s appropriate for their child, for all children are different. If a teen feels they are not satisfied with the amount of time they are allowed to use their devices, which they paid a significant amount of money for, they will sneak it. Sneaking will lead to more types of rebellion. As far as sexting and viewing of pornography after dark goes; if you cannot trust your child not to do those things the second they are out of your sight you should not have bought them a cell phone in the first place.