1. scarcity isn't only of food, which is basically solved, there is also other resources which are scarce like place to live, etc. 2.children for humans were a

1. scarcity isn't only of food, which is basically solved, there is also other resources which are scarce like place to live, etc. 2.children for humans were a way to hedge against scarcity issue in the old age. With that issue decreasing the children are less needed for that. The point is it still directly connected to scarcity (or lack of it).