You're right, for me life without a smartphone would be impossible. I require 2FA for all the systems I use at work. I need to be contactable 24/7 for work. I use WhatsApp for all the coaching I do for my sons sports teams. Banking app swipe is required for certain card transactions. The list goes on and on.

My Dad is retired farmer so his needs amd habits are that bit different to mine, but I still have the height of respect for him for doing without a phone for all these years.