A non-smartphone, that is, a cell phone like the ones that today’s parents had when we were young and with which we made calls and sent text messages, was enough for us, and it did not cause addiction.
That’s not the way I remember it. Texting addiction was a thing. That’s how Twitter became popular; it was basically a way to broadcast SMS to friends at first.
I guess it’s a matter of degrees.
Ad-based services are the real problem here, I think. You don’t hear people complaining about Wikipedia addiction.