Admitted cranky old dinosaur here. I do not have a "smartphone" by choice. I have a flip phone instead. Phone calls, text, and something small that I can stick in my pocket is all I need. I also leave my phone in the car whenever I am out and about, and definitely when I am with someone else. A missed call is not the end of the world.
The more I see of "smartphones" the more I dislike them. They have brought the end times upon us, and the world is full of phone zombies.