I know in Japan for instance, there’s a unmanned store where you can buy things with the only thing meeting you near the front entrance & exit is self checkout. It’s a trust based system where you walk in select what you want (without locking any essential or mundane item behind plexiglass), as in they depend on individuals having common sense on not stealing paying via a “honesty box” based on a honor system.
This worked pretty well with farms/co-ops in Vermont. Everyone had a stand. You could also leave a IOU if you didn’t bring enough coin. Then again this was a town of like 600-700 people. When I phrase it like that, I mean people would pull over and give you a ride to where you’re going. Everybody knew everyone. 🙃