A possible option working within existing systems would be: Parental leave: you get pop sustain rate (2.1?) parental leaves banked. You use 1 leave for every child you have and bank is allowed negative with no penalty. At 45 or so you get to use your bank without being a parent. Something like 95% of people become parents. Flex time/time-bank + home/hybrid office fix most other issues in office jobs.