They are also popular in South America. Comparatively speaking - at least in relation to South America - buying in person is still more reliable that ordering t

They are also popular in South America. Comparatively speaking - at least in relation to South America - buying in person is still more reliable that ordering things by mail. Not only you can see the product you're getting in person, you know who you can talk to in case of problems (online vendors can, and often do, disappear). Regarding "Americans are...larger than other people and they're less likely to care" this is just a stereotype. While it is true Americans are less formal in clothing, and thus more likely to wear casual clothes, people still spend an enormous amount of time "trying to look good". My wife, a very fashion-oriented person, buys clothes online and keeps returning them until she gets what she wants.