I mean the other 2 countries, Canada and Mexico, how similar are both of them to United States?? Both countries have a similar economy and democracy etc, and I think those two countries share things like supermarkets, stores, etc. I suppose the cultural differences are not a lot, that is very nice.
Some people don’t include Central America or the Caribbean countries when talking about North America, even though you technically are supposed to.
What about Greenland? They too are, one might say, a North American country.