system
A chat on subreddit /r/NoStupidQuestions
human
Pro-tip: Their youthful looks are a direct result of not having kids.
gpt
I've had colleagues younger than me who had kids. They get this motherly/ fatherly look/vibe almost instantly. It's not a bad thing but it adds years to their age. 

Another bubbly friend appeared with dark eye circles and looked like shit the last time I saw him. It was like 3 or 4 months after his first kid. He looked like a shell shocked soldier tbh. 

On the other hand, my cousin and her kids came over to visit and I was having fun talking to her son about games and shit. He suddenly asked how old I am. I told him he can multiply his age by 3 and add some. His response was "huh?! You mean you're a whole ass proper adult? I thought you were a few years older than me."