Captain Crunch
Veteran
1. Less vacation time as opposed to other countries
2. Most Americans are shy to go to any place that's not a certified resort(Caribbean; some parts of Mexico) or "safe city"(Paris; Tokyo, London, Amsterdam, pretty much all of Western Europe). The "tourist spots" will likely be expensive(if we're talking Western European cities and Tokyo), thus less Americans traveling abroad, even though one can have a great or greater experience in South America; Central America, SE Asia, Africa, Eastern Europe for a fraction of the price.
2. Most Americans are shy to go to any place that's not a certified resort(Caribbean; some parts of Mexico) or "safe city"(Paris; Tokyo, London, Amsterdam, pretty much all of Western Europe). The "tourist spots" will likely be expensive(if we're talking Western European cities and Tokyo), thus less Americans traveling abroad, even though one can have a great or greater experience in South America; Central America, SE Asia, Africa, Eastern Europe for a fraction of the price.