Not sure, I think it may be more about half your women in their 40s staying single and childless vs 1% 50 years ago, but don't quote me on that!
You should check your intuition against the facts, which show that decreasing fertility rates in the United States are largely a consequence of reduction in teen pregnancies.
You should check your intuition against the facts, which show that decreasing fertility rates in the United States are largely a consequence of reduction in teen pregnancies.