We have the family plan, and my husband has a smartphone, but not an iphone. His data plan is different, but still the same monthly charge because of what he has on it. I have the iphone, and in addition to my plan, I'm $10 extra on the minutes plan. For as many people as we have with ATT, we barely use our minutes and have something like 3K banked at all times, so the family plan at $60, then $10 extra for me works better.Members on a family plan do not have to live in the same state i.e. if your child moves away for college, they can stay on the plan.
How would AT&T know if a member of your family moves ?