I agree that at least the pre-college education in Europe is much better than in US, especially in math and sciences. I also went to school in Europe – though I didn’t move around. My first realization of that occured in high school when at International Olympiads in Science and Math my friends and I compared our high school curricula to the American one – we have learned much more. For example, in the country I was in, we did differential calculus in 11th grade, and integral calculus in the 12th grade – it was standard. The integral and differential calculus was not included for the Math International Olympiad, partially because in US they didn’t learn that. Don’t even get me started with geography, foreign languages (2 of them), art, literature during the whole 12 years of school.