I think we very rapidly went from a world with high child mortality rates, no access to birth control and children being at least moderately useful on the farm or doing some other work quite young to a world where having children is both a choice and very very expensive. This happened depending on where you live in the course of 1-3 generations. We are still grappling with how you incentivize and promote parenthood w…
Also from a world where the ability of women to access decently paying jobs outside the home was heavily restricted to one approaching equality. Motherhood is one choice of many, with negative pay.
My parents baby boomer generation maybe the wife was college educated and worked, but the pay wasn't necessarily great AND the cost of childcare wasn't as insane as it is today.
In many HCOL/VHCOL areas, people tend to not live near parents anymore so they lose free childcare, and then between tax & number of kids in childcare.. very well paying 6 figure jobs are basically just treading water for 5-10 years.
It leaves families with a a hard choice of heaving the lower paid spouse leave the workforce which helps kids and in short term makes economic sense, but ruins future savings for college/retirement prospects as its hard to re-enter the workplace after 5-10 years.
My own mother was in nursing, left workforce for ~20 years and returned working a retail job. My mother in law educated in accounting left the workplace for similar length of time and returned to nonprofit work.
Both of them had degrees that didn't cost 1/10th of what it does today so it wasn't as bad as it sounds. By comparison my wife's student loans weren't fully paid off until we were 35.