[1]: https://www.census.gov/content/dam/Census/library/visualizat...
[2]: https://www.bgsu.edu/ncfmr/resources/data/family-profiles/gu...
[1]: https://www.census.gov/content/dam/Census/library/visualizat...
[2]: https://www.bgsu.edu/ncfmr/resources/data/family-profiles/gu...
Birth control.
About 73 million annually worldwide, or roughly equal to the total death toll (civilian and military) of WW2 every single year.
In 2026, a single minimum wage income can barely survive by themselves with no saving in most part of the US.
Absolutely not true. Minimum wage has never been sufficient to raise a family. It is (was) sufficient to keep one person out of poverty.
Today, family income is up about 10x, but costs have risen much more than that.
In my opinion the two greatest factors on the reason, in the US at least, for the changes, and not having children were - birth control became widely available in the US in the early 70s, and women entered the workforce in great numbers. This greatly increased the amount of family income, but costs quickly rose to basically eat up all the extra income.
My parents married in 1972 at age 18. Rust belt. Both worked. While comfortable, we were always worried about money and layoffs.
Friends whose parents didn't do as well as mine or who were single income households fared far worse. Definitely didn't end up with saved "extra" money.
A single minimum wage was definitely a poverty wage in the 1970s even at the 1970s standard of living. I have no idea where you would get the idea you could raise a family on that.
My memory seems to think that wasn't true.
However, there were a ton of manufacturing and manual labor jobs that were capable of supporting a small family and they didn't need a college degree.
So, you had most young people earning positive money for four years at a very biologically fertile age rather than going into soul crushing debt at that age.
Then I got Mary pregnant
And, man, that was all she wrote
And for my nineteenth birthday I got a union card and a wedding coat
Bruce Springsteen -- "The River" -- which was apparently a fictionalization of his brother-in-lawAlso, consumer credit was illegal until the same time period, and only legalized for people with vaginas in the mid-1970s. That alone might have made all the difference with marriage and fertility (which after all are only mildly related).
Imagine how your choices would expand if unlike your mother, you did not need to become Mrs. John Doe to be able to move out of your father's house.
I was responding to OP's point about how our bodies are better suited to have children when we're younger. I think that's scientifically supported. My main belief would be that having children when you have peak fertility probably goes hand in hand. Birth control is a good hypothesis, you could say it broke this link.
As usual...
Anyway I'm sure the current oil shock and (assuming the clowns get their way) loose monetary policy will be different this time!