I've never heard someone say that they wanted a baby because they wanted to be generous and share the gift of life with someone
right, sadly of course, most pregnancy are hormone-caused. but there is also the deliberate duty bound situation where grandparents, nations even, want their genes, their traditions, their lived on properties, their worth projected into the future, and offspring is a sure bet, unlike wt survive through service or the resurrection hope.
Think of the jewish people, reasserting that important life offspring option after the holocaust losses.