Is it culturally awkward to be polite in other parts of the US/world?

So I grew up and live in the South so I'm used to people being polite and asking me how I am, telling me to have a good day and vice versa. And I'm talking about this is everywhere; th gas station, McDonald's, the Dr's office. Even driving down the road and waving to strangers isn't out of the norm. In fact it even kind of feels odd not to to me. But from what I understand if I acted so cordially in the northern US it would be strange to them. šŸ˜‚ Is this true or are people, for the most part, generally friendly in day to day comings and goings?
Is it culturally awkward to be polite in other parts of the US/world?
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