Sorely mistaken lol
I've watched it play out, heard it play out, acknowledged the reasons for it.
It's not the sole reason, but it's a HUGE reason. A lot of people don't want kids until they're comfortably set.
People ain't achieving rhat status until they're nigh on 40 - a woman in her late 30s having her first kid is having one.
Aspirations for themselves and aspirations for their children (not having children while living in a shithole area with poor schooling for example) are massive reasons people don't want to have children as young anymore (and therefore have fewer, later).
I can't believe anyone would even question that, but I'll listen to your case. What do you think the cause is, because I'd be impressed if that cause ultimately didn't come right back round to money (ie, women in the workplace/second income requirement).