There has been a lot of discussion over such usage, and as to this perhaps being detrimental to mental health, so apart from answering the poll, how do you view your own use of such? This in the news recently, and as to which no doubt other schools have tried something similar:
What happens when a school bans smartphones? A complete transformation
Teachers say mobile phones make their lives a living hell – so one Massachusetts school barred them
www.theguardian.com
How to Monitor (and Reduce) Your Data Usage on the iPhone
Unlimited cellular data is tough to come by.
www.howtogeek.com