This paragraph nailed it for 1st-world countries --particularly the US;
"As parents, we know how wonderful children are and what a blessing it is to be a parent. But one thing that I will say about children is for all of their boundless benefits, they're not convenient. And we have moved increasingly into a world, and this is just one take on a much more complicated set of questions that you've asked, but we've moved into a world in which convenience is prized and in which autonomy, personal autonomy is cherished. And in which constraints on personal autonomy are increasingly viewed as onerous."
