I don’t quite understand why this is still a thing? Back when I was in school in the late 2000s, phones were banned. Couldn’t even bring it out even if you were going to use it as a calculator. Immediate 3 hour detection if you were seen with one. I got one for calling my mother to pick me up because I needed to go to the doctor.
I don’t understand how between now and then, the rules seemed to lax.