Earlier quoted context omitted.
We as a society already penalize people without families: 1. Higher taxes and fewer deductions 2. Higher workplace performance expectations 3. Higher costs in every aspect of life 4. Fewer options eat out, expensive solo tickets at events etc. This is just one more example in a long list of examples of how being by yourself is penalized in the society.
OTOH when you retire those other people's kids will be powering the economy that will be financing your pension.
When a 25-year-old lands a senior role in 10 years at 35, it's because someone else's 13-year-old grew up, graduated college, and got hired as a junior. Promotions are 10% Crushing It, 90% dumping your grunt work on some poor sap too young to know better.
Society is a pyramid scheme, and, like all pyramid schemes, bringing more people in is ultimately more valuable than actually selling the LuLaRoe or whatever.