There is a push to get everything to the phone, drivers license, creditcards, bus pass, keys and more. People seem overly happy that they don't need to bring their wallet with them, but given the choice I'd leave my phone at home.
The point about phones not being good or bad, is important I think. It's not the phone as such, but the apps you put on there. The only "social network" I use is LinkedIn, I don't have email setup on my phone, so only calls or text messages is available to interrupt me. My personal issues is with the browser, I hate using it, because the screen is to small, and the on-screen keyboard suck, still I use it to surf around mindlessly. I'd remove the browser completely, if it wasn't so damn handy in many cases.
In 2015, I had my US Business Visa Interview in Chennai (India). Visa embassy had strict rules that disallows almost everything (prior experience in Bombay). So, on that fateful morning, I got just my paperwork, printed air ticket, drove to the Bangalore Airport, flew to Chennai, got the Visa Interview done, watch a movie in a theatre, and flew back home later in the evening, had dinner and slept. I survived the day across two cities and got an important thing done without a watch, no phone, no electronics. It works.
One day I told a customs officer landing in a foreign country that I can't give him my phone for inspection because I do not have one with me, only a laptop (with X11 disabled at login, just to do so before departure). He ask me why and I answer that's because I plan an attack in his country so I need to be a bit less traceable. He almost believe me................
The explanation of "hey, did you think some attackers can be so stupid to expose himself like that?" seems to sound even stranger at his ears.......
USA, but that happen ONLY one time, so perhaps there was something up just one time, still an a bit ridiculous behavior anyway...
Oh, BTW for us from EU to get a multi-entry visa we are asked few questions, one is of the very same kind: if we have participated to the nazi crimes against the Jews EVEN if obviously born after nazi German fall...
