Where I’m from in Europe I think most people sort of think of it as just basic common courtesy, especially for older/disabled/people carrying stuff. At least, that’s what’s taught, but I wouldn’t speculate on how often it actually happens here vs. the US. I did also once have a colleague from the US who was extremely (almost performatively, I would say) friendly about those kinds of small, polite gestures. So what do I know.
Where I’m from in Europe I think most people sort of think of it as just basic common courtesy, especially for older/disabled/people carrying stuff. At least, that’s what’s taught, but I wouldn’t speculate on how often it actually happens here vs. the US. I did also once have a colleague from the US who was extremely (almost performatively, I would say) friendly about those kinds of small, polite gestures. So what do I know.