You can deny it all you want, or you can ask people why they're not having kids.

https://www.pewresearch.org/social-trends/2024/07/25/reasons...

33% say "not finding the right partner". Everything being too expensive such that we're working all the time and don't have any down time is a huge part of that. Economics play into leisure time, stress, and things that kill relationships and the desire to have sex/kids.