But how do we stop? My wife and I got rid of our smartphones for a few months and just felt profoundly lonely because there’s no one to talk to. It feels like the only way to actually stop would be to have a community all willing to do so at the same time.
Wait, really? Do you have family? Do you have friends? You don't have anyone to talk to at all???
Join a club. Pick up a new hobby. Join a church. Attend local events. There is probably a hundred things you could do to meet and talk with all kinds of people.