I've never had a smartphone and I think the extent to which you need a smartphone is nowadays is overstated. The only things I have ever encountered that I simply could not use was the bikeshare in town and the mothers' nursing stations at certain airports. Restaurants and museums may roll their eyes at me but I have yet to run into one where they couldn't make it work somehow.

The necessity of a computer however is very real, and a credit card is close. I don't think this is great, but I'm glad smartphones aren't there yet.