I recently moved back to Sweden after living 4 years in Germany. I don't have any cards, and I don't carry a "smart"phone anymore; in Germany this didn't cause any trouble at all and I was far from alone. Much of the current Swedish society is currently closed to me, I know of three shops and one cafe in the (200k people) city center that accept cash. Some of it has been gradual but it changed dramatically during the…
I don't know if I can find any English sources but here is one from the ombudsmand in Danish: https://www.forbrugerombudsmanden.dk/hvad-gaelder/betalingst...