I understand your point more clearly, thank you. I've actually had similar experiences/frustrations with people who aren't natively from America and people who

I understand your point more clearly, thank you. I've actually had similar experiences/frustrations with people who aren't natively from America and people who didn't grow up in a context where they were educated on tipping culture (mid-to-upper class) even in America. And I've gotten in quite heated arguments because they just didn't understand the social norms. I wonder what this says about the expectations that people should innately understand tipping culture /shrug.