Why is traveling such a big deal for people?

Disclosure: I've traveled and I've lived abroad in two different countries and been dozens of places outside of my 'home'. But I don't get this…

Travelling show you that “normal” at home is not normal.

Travel Europe for a few weeks and get back to the US and realize just how sick and fat Americans are. And Europeans walk after dark, while Americans rarely walk, and never after dark.