I think it goes both ways. I moved from a liberal to a conservative area. Maybe there are people shaming those who don't pop out kids, but more so I I've noticed it's that they're not shamed if they want to just let loose to their instincts and get impregnated as an 18-year-old and yield to their natural desires and interests. In a liberal city a 18 year old popping out a kid and is often viewed as a pariah.

I mean people do not naturally grow up wanting to stare at a desk/PC all day deciding to become a scientist or a doctor and study a bunch of shit that his almost no relation to what humans were adapted for for millions of years. Our evolutionary programming was to bang, have kids, and roam the jungle and grab the resources and satisfy our short brutish lives.

Now the fact that something is evolutionarily natural or historically normal doesn't mean it is good or right. But just letting loose on that particular natural instinct tends to be more accepted in conservative societies while in the city or liberal areas teenage (past age of consent) pregnancy is seen maybe more of something they will shame you for. You're supposed to do a pretty unnatural thing of staring at books until you're 22 or 26 and then stare at a computer screen so you can get a good job to pay a gazillion dollars for childcare delivered by minimum wage workers. You're supposed to take your time and maybe about the time your biological clock has run out, you pay $20,000 for IVF and you do a speedrun.

So which is a greater imposition of societal pressure? I won't claim conservative societies don't exhibit more social pressure than liberal ones. But on this point, it's not clear to me the conservative one is doing the greater of the pressuring.