Parenting as an unpaid occupation outside the world of public power entails lower status less power and less control of resources than paid work.
No man can call himself liberal or radical or even a conservative advocate of fair play if his work depends in any way on the unpaid or underpaid labor of women at home or in the office.
Human beings are accustomed to think of intellect as the power of having and controlling ideas and of ability to learn as synonymous with ability to have ideas. But learning by having ideas is really one of the rare and isolated events in nature.