Most American ex-pats don't really understand that the thing that makes ex-pat life so attractive is that, for most of people's lives, being American in a foreign country has traditionally conferred a wide range of benefits (this is most clearly exemplified by the way Americans living in a foreign country refer to themselves as "ex-pats" not "immigrants"). The ex-pat solution assumes American exceptionalism as its foundation.

Historically Americans have benefited from income asymmetry and a fairly wide-spread desire by foreign nations not to cause too much legal trouble for US nationals abroad.

I have quite a few friends that do live, quite happily, abroad. But the common pattern for them is a.) fluency in the native language b.) historical association with the country c.) fairly large cash reserves so they can ignore any economic problems these countries are facing.