Americans can be a strange people with their own perspective of the world and their own idiosyncrasies

Americans are a strange lot, especially when it comes to cheese, salad and temperature
As individuals, I really like Americans. They're generous, outgoing and very friendly. But, together as a whole, they can be a strange people.
I regularly travel to the States for work and am constantly amazed by how Americans insist their way is the best, even if the rest of the world thinks different. The rest of Western civilisation tries to work within common-accepted parameters of standards - not the Yanks.
Theirs is the only country in the world where I have trouble deciding if I need a morning jacket because they insist on weather forecasts in Fahrenheit. I also have to calculate how far my business meeting is in miles because they don't want to know about kilometres.