system
A chat on subreddit /r/NoStupidQuestions
human
If the older guy is less mature than the younger woman, the long term prospects are poor. She will probably tire of him when she realizes he’s never going to grow up. He will tire of her demands that he grow up.
gpt
Not always…

My uncle turns 100 this year, he is one of the most immature men I have ever know. My aunt turns 80 this year, she has never tired of him. They celebrate their 40th anniversary this summer.