The problem is that international travel simply doesn’t make sense for many Americans. The U.S. only has two international borders - Mexico and Canada. Any other international destination is going to be a flight across an ocean (South America isn’t, obviously, but the distances/costs are similar), which can be $400-$1200 per person. The cost/duration of flights and need to adjust to a dramatically different timezone means that it really only makes sense to travel internationally when you can go for at least a week at a time. However, Americans tend to have very limited paid time off - usually only 10-20 days or so per year - and that is often a combined pool for vacation, sick time, etc. This means that a single international trip can chew up over half of the PTO for the entire year. So even if you can afford to travel, you don’t have enough time off anyway. Most of the time it makes much more sense to travel domestically and just take Thu/Fri off for a long weekend.

(This is speaking from experience, if you couldn’t tell, lol)