How do cell phones teach responsibility?

for a young kid or teen its having something to think about. its remembering not to forget you r phone- is it charged- did someone call or text- its a constant reminder to have. its also perfect for those situations where the kids or teen wont have the answer to solve it- can i go to my friends house? or can i go to this party? .. they will more than likely call a guardian and it teaches the that its good to ask, and they will because it over the phone its not so confrontational.