> a birth at 17 might prevent a birth at 47 It's not an either-or proposition. What "urge for a family of a particular size" could not be satisfied between age

> a birth at 17 might prevent a birth at 47 It's not an either-or proposition. What "urge for a family of a particular size" could not be satisfied between ages 20 and 47? Hopefully, you're not pushing your child to have "several children by age 20."