I recently spent 2 days in Niagara Falls (Canadian side), and I encountered a family (man, woman, teenager) who didn’t know how to use an elevator. They kept hitting the button for the floor they were on, rather than the one they wanted to go to. They couldn’t understand why the door kept opening, every time they pressed the button. I actually had to explain it to them. They spoke midwest-U.S. English, didn’t appear to have grown up in some back woods, but somehow missed this particular skill.
I might add that there was also an Amish family in the hotel, and they knew how to use the elevator.
So I’m wondering whether any of you have encounted people (or even yourself) who haven’t learned a simple skill that everyone else seems to have mastered.