Phones aren't going away any time soon. Student's should be taught how to properly use their phones to make life easier and not just to use them for entertainment, which they'll figure out on their own. I supervise this guy, who's 21 years old, and I had to show him how to use the calendar to input his appointments and meetings so he wouldn't miss them. He, of course, had the latest and greatest smart phone but didn't even realize it could be used as a tool like that. It really blew my mind he didn't know how to do something so simple using his really expensive phone. If schools don't teach on their proper use as a tool, who will?