[missedthecue]

And a US passport is only needed if you travel outside of the 50 states that comprise the union.

[peoplefromibiza]

true, but it's not the same thing

An European citizen can go to Egypt or Estonia or the Canary Islands or Iceland or Norway or Switzerland without a passport

OTOH it's easier to learn English for an European - we all study it in primary schools - and go to the US than for an American to learn Norwegian and move to Norway.

It's also a lot less of a cultural shock to go EU->USA than the other way around.