Many students have after-school activities, such as a sport or a club that they participate in after school hours, when most people, including the office staff, have already gone home for the day. The students need a way to contact their parents during and after these activities, and vice versa. If cell phones were banned from school grounds, even just during school hours, how would the kids contact their parents afterwards? With only one or two phones in the office or on a coach, having thirty or more students per activity coming in to use the phone one after the other is just ridiculous. It would take hours, something that would take minutes overall if the kids each had their own cell phone.