I wish the world would have gone down the route of banning social media in schools instead. But I guess that wouldn't create an execuse to de-anonymize the web :(
Today's kids are discouraged from walking around unsupervised, discouraged from partying together, discouraged from fighting and pranks.
So we take away their phones and kids what, sit around at home? Homes where the parents are phone users ie homes without libraries, without adequate crafts.
Phone-free lifestyles require a society-wide infrastructure, and we don't have that.