I'm 26 so idk if some of my experiences may help?
But one of the biggest challenges I face as an adult is fighting what society and my peers expect of me because "that's just the ways things are." A particular case is since I'm a woman and married, I get pressured a lot of have kids, like weekly. Don't get me wrong, there's nothing wrong with having kids and I love kids. I have plenty of nieces and nephews I spoil rotten and love to death, I love babysitting and whenever there's a baby I'm always willing to hold it in my arms. However I have no desire whatsoever to get preggers and have my own.
I don't want to be a parent and I'd rather spoil my nieces and nephews instead of rearing my own child. But, everyone I know around me is getting pregnant and we're getting older so I always get asked "When are you gonna have kids?" or whenever I meet someone new BEFORE THEY EVEN ASK ME MY NAME they ask "Hey, do you have kids?" Please let me reiterate, there's nothing wrong with kids, but majority of the time I feel like I'm not taken seriously as a woman because I don't have little ones running around. And after a time I do feel a little bitter so most of the time I give a very short answer and try not to advance the discussion. I'll remain polite though. Then the cliche statements come rolling in, "Oh you'll change your mind soon" "It's different when you actually have kids" and "It's worth it to have kids." I don't doubt this and I do respect parents for the hard work they do for their children, however not everyone has the desire or the means to have a child and I just wish society would be a little bit more understanding about this.
I know men deal with it too since they're pressured to get married and have kids but I dont know to what degree, so I'm not sure if my perspective helped at all ^^