But there is genetic testing for Down. I certainly would not sign up for caring for a developmentally disabled child.

And I still do not understand about sleep deprivation. I actually have high sleep requirements these days. But the baby's sleep requirements are, still, much higher than mine. Even than mine. So where would sleep deprivation come from? I have never been sleep deprived having had three babies. Sure, I need more sleep now than I needed when I was in my twenties. But, again, not SO much more, right? Who is the adult and who is the baby?

"Do not fool yourself into thinking sleep deprivation is invented because you're wanting a baby badly. It is VERY real."

Well, I have three data points, now ages 19, 14, and 12, and no sleep deprivation with any one of them. So I continue to think that only invented/modern parenting practices can cause sleep deprivation. How would a species have evolved successfully for which raising babies were so difficult and draining? Such species would have long died out.