The US is pioneering a
new
kind of poverty, where most people's income is large compared with
ordinary poor countries, but the cost of living is so high that life
for most people is walking on a knife edge.
A hundred years ago, poor people in the US made very little money, but
they could live on very little money. To Kill a Mockingbird refers to
a schoolchild that couldn't accept a loan of a few cents because his
family wouldn't be able to repay it. But they did not die from this.
They evidently lived in a house they owned and didn't have to buy very
much.
The equivalent purchasing power today might be ten dollars.
Anyone in the US today that never had ten dollars would die.