I'm a US citizen who lived in Europe about when I was about 27. I was there for 4 years and it was a great experience - both leaving and returning. I'd do it

I'm a US citizen who lived in Europe about when I was about 27. I was there for 4 years and it was a great experience - both leaving and returning. I'd do it again in a second. How it worked for me was: I helped start a company in California, then when we decided to expand to Europe, I moved and helped set up operations there. I never considered changing citizenship. After going and returning, my feeling was that I could be at home in either place. Its good to shake things up every now and then, and it is interesting to be in a place where things are a bit unfamiliar. So if you get a chance to move, do it!