Yes, though I think Bryan is unfairly excluding a lot of counterexamples if "lower cost of living" is defined out. It might be theoretically possible to move to a lower cost of living area without making the person relatively richer, but I would struggle to think of an example. And talking about moving for "lower cost of living" is politer than saying "I want to feel superior to my neighbors," so I'm not surprised people focus on the former.
"People relocate to get a better job, to be closer to family, for a lower cost of a living"
Note that last bit.
Yes, though I think Bryan is unfairly excluding a lot of counterexamples if "lower cost of living" is defined out. It might be theoretically possible to move to a lower cost of living area without making the person relatively richer, but I would struggle to think of an example. And talking about moving for "lower cost of living" is politer than saying "I want to feel superior to my neighbors," so I'm not surprised people focus on the former.