Accustomed to similar wages
I believe once you get a trade and start making good money, even if your trade goes away you are more likely to learn another trade that pays the same or better. I believe many poor people get accustomed to low wages and it just becomes normal to them and they pick those trades because of stability. But if they were forced to learn a trade and they started making 100k a year if you didnt allow them to work that trade anymore they would scramble to find another way to generate this same income.