https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Increasing+Population+Densities+Predict+Decreasing+Fertility+Rates+Over+Time&btnG= https://scholar.googl

https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Increasing+Population+Densities+Predict+Decreasing+Fertility+Rates+Over+Time&btnG= https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Incr... Part of it may be the cost, housing available, society expectations (having 3 kids is at the top of expectations). Career, starting later and perhaps too much (or too little) choice in the dating pool.