Kids could do stuff bad on it like texting a stranger
Phones could distract people when crossing the road
If anyone has your number.like strangers they can call your number
Some people cheat on test because phones now don't need wifi all the time
Another problem is social media. Social media can put kids in danger cause some SoCal media uses can find your location in the app and someone could go were you are
A phone could also ruin your eye sight from all the light m the phone