Not really the lack of desire, just lack of opportunity. I'm only 22 so I've only really had agency for 4 years, and in those years my focus was supporting myself and my family.

I have never travelled outside America but I have been close. I had grandparents out in Arizona, and when I visited them years ago they took me to Nogales, which is a border city kinda like Arizona's San Diego, however I couldn't cross into Mexico as I didn't have a passport at the time.

Edit: I think I have been in an embassy once or twice.