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Most of them did settle down quickly as they certainly had entrepreneurial spirit and were used to hard work. In Poland though, the work was largely wasted, throttled and didn't pay enough to survive, so you can imagine the ego boost when the same work suddenly pays you 100x what you earned before and suddenly you can have decent living without much effort — because in Poland to survive you often had to have 2 or 3 jobs, so could be a professor during the day and a porter overnight.