One of the things I most noted when I moved to the USA is the almost systematic refusal to understand that other people have other names for things. Example: the bathroom. “Are you going to take a bath?” Uh, no, it’s the name of the room. “Don’t you mean the RESTroom?”
This reminds me of an argument I got into with a fellow US person about corvid names which would be tedious to summarize but at one point escalates to me shouting “you can look up what Daddy Long Legs is in Britain, you have the internet!”
I've always found this odd. & I'm sure you know it doesn't stop at diff words - the refusal or shock that other countries have different things or don't have things, the general concept that the entire world doesn't work the 'American way'... is amusing to behold even in the loveliest of Americans
My dad does the reverse if you tell him you're going to the restroom in the house. "You going down the street to the gas station? We only have a bathroom in this house." It's beyond annoying.