Protip: Most of them don't have kids and never will. They end up becoming the cool wine aunt of their sister's kids, devote most of their energy to work, hang out with other older female spinsters, or just go around travelling fucking random Chads for casual sex but without any long term commitments. Take it from an oldercel here.
Then you'll see these women in their 40s who choose to be single and alone because they already rode the three thousand dick carousel their entire lives where they become bored of or detached from all sex altogether. Yes, it's a thing, I see it all the time.
My favorites are the old divorcees who have had children with multiple men and you would think after the fourth divorce they would grow the fuck up, but let me tell you young lads something, they don't where they never will. Even after the fourth divorce they're still riding the Chad dick carousel in their late 40s until they convert to religion and find Jesus, by then it is the harvesting season of cats until death by old age.