Comment by vinay427
I’m not sure what ‘the US’ means here. In California it’s now required (as of next year) for schools to limit or restrict student phone use, and several other states have done similar things as mentioned in the article [1].
[1] https://www.theguardian.com/us-news/2024/sep/24/california-s...
I think it is reasonable for a teacher to say you can't actively use your phone while class is in session but not appropriate for them to say you can't have your phone on you. It is also inappropriate to say your phone must be in some special pouch that only they can open, etc.
This is just my own opinion, of course. I think it is also inappropriate to say you need someone's permission to use the restroom. All my opinions of appropriate ness is mostly about adults behaving like adults though. They probably don't make sense when it comes to children?