Americans are the most generous country on the planet. I've worked in Europe, I've worked in Australia. There is no where else where you get absolutely no attitude for being a foreigner. If you do your job well, they embrace you.
Stand-up came out of three things. Frustration, necessity and arrogance. I didn't have a great career ahead of me in anything. Someone literally said to me, 'You should try stand-up,' and took me to a venue.