Tangential, but it's a hilarious stereotype of Americans how they just bunch together the whole of Northern Europe. I'm a Finn, and in 9/10 cases when an American learns this, they tell me about their travels in Sweden or Norway.
Can't help but think the correct protocol here is to respond to them "Oh you're American? Nice, I've been to Mexico!"
In fairness if you're an American from Uruguay you wouldn't have a lot of interest in the internal political boundaries of that area like an Estadounidense would.
(though I suppose you could be an Estadounidense from the Estados Unidos Mexicanos - it's really not the best continent for disambiguation!!)
I made no such assumption; merely pointed out that the original post is about Norway, but the commenter appeared to have confused it with Denmark. Could happen to anybody, really... ;)
Can't help but think the correct protocol here is to respond to them "Oh you're American? Nice, I've been to Mexico!"