text: Even if the policy was changed to "no cell phones at school", students would still sneak them in. This would make for even more of a problem because then the teachers would have to take them away and this would cause trouble. Usually, when kids get items taken away from them they feel the need to use it more, maybe just to be a rebel. If the policy was changed to "having cell phones at breaks" then this would not cause a issue because the student would not be interrupting any lesson.