I would say yes but the only time they will be able to use their phone will be during lunch after school and free play. For an emergency they can call their parents or guardians but the cell phones will have to be in their lockers and cell phones did to be shut down. The teachers will have permission to go throw their lockers and see if their cell phones are off. If there not off they will be taken away and their parents or guardians will have to come and pick them up and pay $ dollars. If they get taken away the second time their parents or guardians will paying $ dollars and spend one day in school suspension for one day.
Our brains get a little rush of dopamine every time we interact with our phones, so every text you send or receive, every post or update, feels good. Why is that a problem? Because it can distract us from other things that are important but maybe not so immediately rewarding, like connecting with our families, doing our homework, and just thinking about life. To prevent addiction, make sure you block out time every day -- like while you have dinner and do homework -- when your phone is off. If you feel like that's too hard, talk to your parents about it and ask for their help. There are programs that prevent your phone from being used at times you designate.