Does falling fertility weaken families' ability to support their members?
Core argument: Rapid aging and steep sub-replacement fertility are inextricably connected to a revolution in family structure in which families grow smaller and more atomized, fewer people marry, and voluntary childlessness takes hold country after country.
Families are society’s most basic unit and are still humanity’s most indispensable institution. Both precipitous aging and steep sub-replacement fertility are inextricably connected to the ongoing revolution in family structure. As familial units grow smaller and more atomized, fewer people get married, and high levels of voluntary childlessness take hold in country after country. As a result, families and their branches become ever less able to bear weight—even as the demands that might be placed on them steadily rise. Just how depopulating societies will cope with this broad retreat of the family is by no means obvious. Perhaps others could step in to assume roles traditionally undertaken by blood relatives. But it is hard to expect duty and sacrifice in childrearing from people who are not kin.


