Social Media is definitely at the point where TV was in around 2012. There were the early 'adopters' who cast out their sets and proclaimed the virtues, but they weren't shunned and understanding was attempted... what's a DVR? what's streaming? Silly questions a few years later, right.
Cell phones are wonderful, apps are useful, don't get me wrong. So is self awareness and presence. It's a huge waste of effort to go to a party/concert just to use a device for non-urgent activity. I used to be on PagerDuty for 7on/7off and I forewent my normal life during those days to ensure I could respond. Sometimes I'd go to a bar with my backpack and sip with coworkers/acquaintances, but it obviously disturbed the vibe not keeping up so eventually I stopped.
I wouldn't go to a concert if I had urgent stuff that could happen. Family emergency? Shit, we'll we've managed until now, life happens. The external cost to social skills and ambiance are so great, as we can all observe, that that one act of nature edge case isn't worth the external costs (we can agree to disagree).