Dogs have become the new kids. And no one smart is really having many kids anymore. Why is this?
I have neither a dog nor kids.
Demographically speaking, increasing women's access to education, decreasing infant and childhood mortality rates, increasing access to birth control and increasing economic power and potential reduces the number of children women choose to have. In other words, decrease the procreative necessity to have enough children to guarantee their survival to adulthood, and increase women's ability to fulfill and define themselves outside of their biological potential, and women--regardless of background, ethnicity, religion or economic status--on the average choose to do so.