Child-less

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It is most reasonable to assume that we should obtain a curve of distribution, varying from an extreme where individuals have a zero or negative interest in caring for infants, through a mode where there is a moderate amount of impulse to such duties, to an extreme where the only vocational or personal interest lies in maternal activities.

–"Social Devices for Impelling Women to Bear and Rear Children" 1916

Plummeting fertility rates in the United States and Europe since about 1970 are drastically reconfiguring the ethnic composition, economies, and political balances of power in the West. . . . But pronatalist government policies with huge tax breaks and the like for offspring are famously ineffective. You cannot pay people to have children.

–"The Baby Stops Here" 2005