system
A chat on subreddit /r/NoStupidQuestions
human
I agree with this, but could fertility issues also be playing a part as well? 

I’ve never known so many friends trying and struggling for kids, miscarriage after miscarriage. 

Maybe people just didn’t talk about it a lot before, but over half my friends have PCOS and/or endometriosis. I also know a few whose male partners have low sperm quality. 
When I was younger it seemed like everyone was having kids, now that I’m of age, so many women I know are struggling and can’t. 
I thought I heard that infertility issues are on the rise in the western world?
gpt
That’s a good point. I don’t know about yours, but in my socio economic circle, developed country, all university educated ‘successful’ professionals, most are having first kid at around 40 (if they find a partner - half of whom met through online dating because timing was getting short). At this relatively late stage (over a decade later than our parents) around half had difficulties conceiving, most have stopped at 1. Could the reason for your circle be age, or is it something else?