I think cellphones should be banned in classrooms and allowed between classes. I'm not sure why they should need to be banned during students' freetime. This is how it was when I was in high school during the very early years of smartphones and it worked out fine. If I wanted to listen to music while walking down the halls or during lunch, that was a really important coping mechanism for me with how dramatic high school can be. It also allowed me to keep in touch with my friends and meet them around the school. I think it's overly reactionary to do a blanket ban like that. I completely understand the need to ban them within classrooms. That's reasonable to me as classrooms should only be for learning.