Birthrates Are Plummeting Worldwide. Why?

For a long time, the story about the world’s population was that it was growing too quickly. There were going to be too many humans, not enough resources, and that spelled disaster. But now the script has flipped. Fertility rates have declined dramatically, from about five children per woman 60 years ago to just over two today. About two-thirds of us now live in a country or area where fertility rates are below replacement level. And that has set off a new round of alarm, especially in certain quarters on the right and in Silicon Valley, that we’re headed toward demographic catastrophe.But when I look at these numbers, I just find it strange. Why, as societies get richer, do their fertility rates plummet?Money makes life easier. We can give our kids better lives than our ancestors could ha