Comment by tokioyoyo

I don’t think people who don’t have kids are thinking about sci-fi stuff. Other than my dad, I genuinely have never met a person who ever thinks about it, and well, he had me and my siblings.

Some people just believe in (and sometimes achieve!) fulfilment through other means. Problem is, that is objectively bad for economical and cultural growth of the humanity. No single country has been able to resolve that problem without religious beliefs or kinda forcing women to have children (by either taking all their opportunities away or them not having any by default).