My opinion differs as to why. I think Australians travel more because:
-Proximity to Asia (thus cheaper). It's much more expensive for Americans to travel to Europe, than it is for Ozzies to travel to Bali/Vietnam/Singapore.
-Most of Australia is pretty 'homogeneous', so there is'nt much variety to be had, compared to the US anyway, so i suspect most Americans just travel around the country for holidays.
-I also suspect there's a larger proportion of first/second generation immigrants in Australia who visit extended families overseas.
However, I agree on the holidays situation. 4 weeks vs 2 weeks annual leave makes a big difference. IMHO
Yes this is true, we have a large European ethnic groups here in Australia.
Wow is it only two weeks holiday in USA? Here its between 4 to 6 weeks a year.
[doublepost=1559577224][/doublepost]
According to statista about 38M Americans traveled overseas in 2017. Doesn't look a small number in my opinion.
https://www.statista.com/statistics/214774/number-of-outbound-tourists-from-the-us/
And 82M outbound tourists from the US in 2017 alone:
https://www.statista.com/statistics/214771/number-of-outbound-tourists-from-the-us/
https://nypost.com/2018/01/11/a-shocking-number-of-americans-never-leave-home/