I would guess the main reason for many is that they have friends and family here or
the lack of unskilled workers here.
A more subtle reason is the long history of immigration to England that started with the
Empire and the migration out of England, at the same time, wich caused the English
language to spread.
If I was going to move out my first questions would be:
(In order of importance)
1) Can I get a better life there / is there work for me?
2) Do I have friends of family there?
3) Can I speak the language?
4) Will there be communities I can share my culture and/or religion with?
5) How hard is it to get there or how far away?
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