There is no later option, actually. No matter how good life would be - people won't have more children. Prosperity in the context of fertility matters only in r

There is no later option, actually. No matter how good life would be - people won't have more children. Prosperity in the context of fertility matters only in relative values, not in absolute values. People have a lot of children not when they are wealthy, but when they are wealthier than others, and so it always be minority, no matter how good life are.