“It has yet to be shown that any society can sustain stable high fertility beyond two generations of mass [state] schooling.”
John C. Caldwell (Theory of Fertility Decline, Academic Press, 1982)
Why do you suppose that is?
And does this include places which only so educated boys?
I don't know the answer to the second question, @rockfox, but my educated guess about why mass-state-education would cause a decline in fertility would be that it is because the impulse to create compulsory education is only going to come from those of the progressive bent, who will tend toward both elitism and misguided collectivist philosophies that emphasize the supposed benefits of eliminating distinctions among people, especially those based on merit or achievement outside of general popularity. Add to that the dumbing down required to keep most students on the same page, and you have a recipe for lowered expectations and covertly-encouraged selfishness that both discourages the kind of competitiveness that leads to men being virile and women appreciating that virility, all of which will lead to lowered virility and a decrease in the kind of activity that leads to actualized fertility.
But that's just what occurs to me off the top of my head.
“The United States must overcome the materialist fallacy: the illusion that resources and capital are essentially things [emphasis added], which can run out, rather than products of human will and imagination which in freedom are inexhaustible. This fallacy is one of the oldest of economic delusions, from the period of mercantilism when they fantasized that it was gold, to the contemporary period when they suppose it is oil; and our citizens clutch at real estate and gold as well. But economists make an only slightly lesser error when they add up capital in quantities and assume that wealth consists mainly in machines and factories. Throughout history, from Venice to Hong Kong, the fastest growing countries have been the lands best endowed not with things but with free minds and private rights to property.”
George Gilder, Wealth and Poverty, 1981