Comment by aprilthird2021

> Students' sleep, classroom behaviour, exercise or how long they spend on their phones overall also seems to be no different for schools with phone bans and those without, the academics found.

> However, they did find that spending longer on smartphones and social media in general was linked with worse results for all of those measures.

https://www.bbc.com/news/articles/cy8plvqv60lo

About the same study. Again, when kids are not on their phones they do better at school. Period. A ban is just a way to try to get there. If it's not effective because kids skirt the rules, we try something else