A better analogy is the way Europeans come to America, visit New York City and L.A., and think they know everything about the nation as a whole, as if the U.S. is a homogenous culture, rather than a conglomerate of roughly 10 or 11 different cultures. The worst part is that the majority of Europeans (yep, I'm generalizing) I encounter seem to think that the massively exported American pop culture is representative of U.S. culture, when it is absolutely not. I grew up in rural Appalachia (West Virginia, western Virginia) and the culture for both business and informal activities is vastly different than that of the Deep South, West Coast, Mid Atlantic, etc.
See this book: http://www.amazon.com/American-Nations-History-Regional-Cult...