You can monitor the inputs to their decision making to see if fear is a factor.
In the rest of the developed world the news, TV, radio and media in general do not talk of things that create fear. Advertising is not based on fear. People do not talk of losing their job. People do not talk of going bankrupt (or financial trouble) because of health care/university loans. People do not talk about home invasions or terrorist attacks like they are a real thing.
In short, fear is not an input to the decision making process in developed countries. It is an extremely strong input in America.
So people in France, Israel, UK do not talk about terrorism as if it's a real thing? Wow, interesting, did not know that. So, people in Greece don't ever have economic stresses? Interesting. There are some really great points here that have no basis in reality. :) This is just ridiculous. The vast majority of Americans do not live in Glenn Beck level paranoia but Europe is not immune to the same stress producers that exist in the U.S.
If you are amazed by that, I suggest you spend a chunk of time outside America. The rest of the world is not run by fear.
I spent last week in America, and was amazed by how pervasive that culture is there.