"A big section of society is appalled at the notion that there are ladies who don't want to have a baby, and quite a lot of people aren't judgemental but still just can't get it."
I think that's why when these types of articles are posted, we see comments about how the childfree are selfish, ungodly, immature, liberal, etc.
People who want kids and have kids just don't understand those of us who don't want kids. That's really what it boils down to. And people therefore try to find an easy explanation for those who don't want kids: selfishness, ungodliness, immaturity, liberalness, etc.
Even if people don't understand others not wanting kids, at least they could be a little more accepting of people who are different.