You are probably asking the wrong person... my Dad is a professional musician and so we HAD to move around more than we wanted to. It was not by choice but by necessity.

And I would also think that among the tens of millions of Mexican immigrants in the US there are many who are homesick and who would rather like to live with their families rather than spend their lives on the run from one minimum wage job to the other or one farmer's field to the other.

I met a guy from the Philippines who works in the US to support his kids. He gets to see them once every year, at most. Do you think he is doing it because he has a choice? The man's heart brakes every time he talks about his kids and how he is afraid that his brother's family where they live is not treating them like their own. On the upside: his janitor's salary allows him to send his son to college to become a white collar worker... and the son will probably send his son to university to become a doctor or let his daughter be an attorney...

If you go to Singapore, you will see thousands of laborers from Malaysia work on construction sites...

I could go on. The short version is that people move to where the work is. Desperate people move further and endure more hardships than fat people with homes and social security checks. I don't mean that in a derogatory way, it is simply the result of the survival pressure that people are under. Hunger is a cruel mistress. When she talks, you listen.

I move to where I like because I can and because it is fun. I have made myself a home on three continents and maybe I will make that four by the time I retire... No, I do not think that the reasons I move for are typical. But I do think that moving is essential part of humanity. We were nomads and we can always be nomads if we have to.