> Developed countries tend to have a lower fertility rate due to lifestyle choices associated with economic affluence where mortality rates are low, birth contr

> Developed countries tend to have a lower fertility rate due to lifestyle choices associated with economic affluence where mortality rates are low, birth control is easily accessible and children often can become an economic drain caused by housing, education cost and other cost involved in bringing up children. Higher education and professional careers often mean that women have children late in life. This can result in a demographic economic paradox. From the NIH: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255510/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255510/