text: I think you could go with policy number two because no teenager has a use for it when you go to school. For example, a teenager doesn't need a phone during school hours, if a teenager needs to use a phone he/she could ask the teacher if he/she could use it for emergency reasons. Another example is that, if a teenager wants to text a friend he/she could do it when they arrive at their house to text them all about their day at school or something.