is the appropriate adjective
I just found it interesting that the thing you were looking for, most Americans wouldn't have heard of. It makes me wonder why America has at least 3 milks.
If we ignore the 3.5% v 4% distinction and assume what we call Whole Milk, you just call Milk; what do you call Skim Milk? Or 2% Milk? And if you don't have them, why do we?
As for the money question, I was curious to see if other non-Americans felt the same. I agree that there is a subset of people who believe that. That subset may be quite large, but I'm not sure how it's perceived from an outsiders perspective. If you ask me, I don't think it's common, but I imagine some loud folks may make it appear that way. But I also acknowledge I'm an American in America, so maybe I don't notice it.