If I'm being honest, this is the same as other times I've encountered people talk about community. I've noticed that a lot of people talk about this in a very "other people are like this" sense. I have noticed the opposite. Other people are not like this. In fact, the normies are out there living normie life in a way that is perfectly community oriented and not at all problematic.
https://wiki.roshangeorge.dev/w/Blog/2025-10-09/Community
I think the explanation for lack of children is much simpler, but one that most cannot really admit: there is an opportunity cost to having children. An entire class of lifestyle will no longer be available to you realistically. Children are not expensive for the value they provide, but there are things you cannot spend a large amount of your time on.
https://wiki.roshangeorge.dev/w/Blog/2025-02-14/Fertility_Ra...
My experience having kids is that we walk around with our baby and people love her. Random people will look over and say "oh my goodness, what a cute baby"[0], people will hold doors for us, airlines let us transport car seats for free and discount a seat for the child. In fact, I'd say the actual reason for a lot of things is more structural.
e.g. home regulations like double-staircases, or height restrictions, and so on constrain the form factors of homes that can be built; car regulations and market demand in a few-child world emphasize form factors that constrain family size; things like that.
Besides there is a great deal of social contagion in this subject. A friend of my wife's texted her saying (paraphrased) "to be honest, after seeing how cute your baby is I changed my mind on wanting kids"[0].
0: And as the father, I definitely think my baby is exceptionally cute, but in reality this is likely everyone else's experience.