I believe that children do not understand how to use a cell phone appropriately. Since I recently came from junior high I can tell you that cell phones were a major distraction to student in class and them using them affected their marks substantially. Since kids in elementary are less mature they probably would use them inappropriately for example gaming or going on social during class time but also during their recess. You may argue that its their recess but since an obesity epidemic is upon north America we should do as much as we can to get our future generations active and healthy. A school can provide anything a child would need a cell phone for. From my understanding there is a home room phone for every class room or at least at the office.