maybe not all but I assume that most of these expats have left their families......
that tells me all I need to know about them....they left their families....
I'll venture for the most part they're older men, probably widowed or divorced and their "families" they "left behind" are thirty year olds plus, well ensconced in their OWN lives of work and mostly the trap of mortgage and wish THEY could go with Dad too ....
You should think these things through before replying