That means about 1/3 of male population may never have any of them as well. What haunts me most is to ponder about the world we get when a lot these 18 years old become 75+ years old people with no close living relatives and their social support network mostly gone before themselves. A world of single or no children also leaves people with no uncles, aunts or cousins.
I’d estimate if 30% of women aren’t having children at least 50-60% of men won’t. God knows what kind of issues that will cause.