I remember I could send texts (including selecting the contact) in my pocket without looking at the screen of my Nokia 3310 in high school. So I think the boili

I remember I could send texts (including selecting the contact) in my pocket without looking at the screen of my Nokia 3310 in high school. So I think the boiling pot analogy holds. Things were already pretty advanced by the time smartphones came along. And the importance of cell phones to everyone’s lives (even children and teenagers) has massively increased since then. For schools to blanket ban them on campus or on the person of students in class would be swimming against a strong tide indeed. My guess is that the reason they don’t is that they believe that to do so would be constant war. And they aren’t paid enough for that.