should students allowed to have cel phones in elementry and high schools?

cell phone is the part of everyone’s life. cell phones have many advantages and disadvantages. I want to discuss both views.
due to many advantages of cell phones like cell phones help them to connect with their fellows and teachers. cell phones help them to study online everywhere and every time. cell phones help them to complete their assignments and other educational tasks. for hostilities it is useful to connect their parents. it is useful at the time of emergency. according to these advantages students should allowed to have cell phones.
on the other hand cell phones disturbed their studies. because they use cell phones every time. students might use cell phones only for games. the extra use of cell phones might be effect on their eyes and physical health . therefore should not allowed to have cell phones.
in my point of view student should allow to have cell phones with many restrictions. students use cell phones only for education, to connect their parents, teachers and fellows..