You still have people like JD Vance who seem to think that there's something wrong with people who do not to have children. The fact that he was so open with his comments leads me to believe that there are a lot of people like him out there. Mr wtg and I don't have kids, and for a long time we got the "when are you going to have kids?" question.
I think a lot of people don't feel like they owe anyone an explanation about personal things, and an answer like "it just didn't happen" sort of shuts down the conversation.