Should students be allowed to have cell phones in elementary and high schools ?

Cell phones have both pros and cons.Cell phones are useful during schools if you have an emergency and want to inform your parents about something.In this emergency situation students can also contact their family through school office telephone.So this is not a valid reason of having cell phone in schools.It is my contention that students should not be allowed to have cell phones in elementary and high school.Cell phones play a negative role by diverting the attention of students from their studies which results in poor academic excellence.As i am also a student and have experienced that students constantly use their cell phones in class by hiding in books and make teacher fool by pretending that they are listening to them.They also use cell phones for cheating purpose in class test and in result they don’t work hard to achieve the best academic excellence rather then they rely on their cell phones for cheating and getting good grades in the exams.Cell phones distract the students from their studies and from achieving success.Students also use cell phones for taking pictures and uploading them on social media apps like( facebook, instagram,snapchat etc) during class.So cell phones should be banned in elementary and high schools.