Many people think that when the population decreases, per capita resources will increase, and per capita income will naturally rise.

But the reality is often the exact opposite.
A decrease in population does not necessarily increase your income, but it is very likely to increase your burden.
Because the operating costs of modern society are largely fixed costs and intergenerational transfer costs. When the population decreases and the working-age population shrinks, the number of taxpayers, social security contributors, and consumers will all decrease, while expenditures on infrastructure, pensions, healthcare, and public services will not decline at the same pace.
As a result, the cost each person has to bear may actually be higher.
What truly determines a society's wealth level is not just how many resources per capita there are, but more importantly, the population structure, productivity, and economic vitality. A decrease in population essentially reduces not just the number of people, but also the entire society's future demand, innovation, and growth capacity.