The three scenarios expose a disagreement hidden inside the phrase “solve low fertility.” One person wants more babies next year. Another wants every adult to achieve the family he or she desires. A finance minister wants enough workers to fund pensions. These goals overlap, but they can point to different policies and declare success at different times.
I think the long-run goal should be demographic renewal near replacement. A civilization should ordinarily raise a generation capable of succeeding it. The immediate work is more personal: help men and women form families early enough to have the children they hope for, while treating every child and every adult as a person rather than an input to a projection.
Closing the gap between desired and achieved family size is therefore a decent first measure. It relieves a real grief without asking the state to assign anyone a reproductive duty. It may not produce replacement fertility. Preferences themselves are shaped by employers and the culture people absorb at home. A society can satisfy every stated intention after it has trained most people to want very little from family life.
Adaptation belongs in the goal too. The older population is already here, and the missing workers of 2040 cannot be conceived in time to arrive as adults. Governments should make smaller places function well. That duty does not turn managed decline into a sufficient civilizational destination.
Authority close to the person
The decision to have a child belongs first to the man and woman whose lives will be changed by the child. Their freedom protects human dignity and guards against the abuses described earlier in the book. A population target gives the state no title to a woman’s body, and a future citizen cannot be created by administrative command without violating the goods renewal is supposed to preserve.
Freedom isn’t the only interest present. A spouse may bear costs the other ignores, and neighbors live with the consequences of family choices. Future people receive our debts and institutions without casting a vote on them. Their interests are real even though no agency can represent them perfectly.
This is a reason to divide responsibility rather than centralize it. Law can remove penalties on marriage and protect parents from obvious discrimination. Local communities can supply knowledge and care that a national program cannot see. Families can teach that freedom matures through obligations freely accepted. None of these actors is trustworthy enough to own the whole question.
There will be hard boundaries. Coercive birth policy should remain outside them. Government should also stop claiming neutrality while tax and housing rules make one form of life much easier than another. Public power inevitably shapes the ground on which private choices are made. It should shape that ground toward family formation while leaving the final choice with persons.
What to count
A rising annual fertility rate is encouraging. A stronger measure follows birth cohorts long enough to learn whether people are actually completing larger families rather than merely shifting births between years. The age at first birth helps show whether recovery is becoming biologically easier or leaning harder on late catch-up.
Numbers nearer the household belong beside those rates. Stable marriages and healthy children tell us whether renewal is serving families rather than using them. A fertility policy that raises births by making family life harsher has failed its proper end. So has an adaptation that balances the pension fund by loading the bill onto the young adults we hope will raise the next generation.
Success would look a little untidy. More people would have the children they wanted, fertility would approach renewal, and smaller cohorts already born would be cared for through the transition. Some towns would still close a school. Some adults would choose no children. The direction would be clear even while the settlement remained imperfect: freedom ordered toward a future that can continue.
Citations
- United Nations Population Fund, State of World Population 2025: The Real Fertility Crisis, 2025.
- United Nations Department of Economic and Social Affairs, Population Division, World Population Prospects 2024: Methodology of the United Nations Population Estimates and Projections, 2024.