A few years ago I encountered a report of a California school that excluded smart-phones. I have a personal friend that's an educator out there.
The two details I recall from that conversation:
1) It was a private school, a Rudolf Steiner school.
2) Many of the parents that sent their children for this deliberately low-tech education were from high-tech industry, "Silicon Valley".
I made my personal decision to not carry a smart-phone before I started reading articles about how addictive they are, in life-changing ways.
Might seem inadequate for one that spends as much time online as I do. But I'm wary of some of the peril.
I understand for example that there are smart-phone traps built into the Internet, designed to psychologically ensnare users.
Long-scroll is one example that comes to mind, but there are others.
My conclusion here is these two have offered but a scant glancing blow at a problem that may not be getting enough attention.
I suspect the smart-phone may be changing the way we socialize. For good or ill ?