I think you might be conflating significant discomfort with financial inability. People used to uproot their families and migrate while scavenging, or dad would move to a place with better prospects while sending money back home until they'd saved enough to move.
There are places where the cost of living is less than half what it is in Florida. Disrupting your family's life over a two year period to make a move is risky and painful, but far more feasible than people usually say.
Given modern food banks, charity, gofundme, etc, not wanting to move is a decision rooted in comfort, not survival.