I don’t know how many 28+ year old virgins you’ve met, but I know like 5-6, none of whom are completely socially inept(I have really nerdy hobbies? I don’t know why I know so many), and only one would be at all cool with another person making a joke about it, but still probably not a random aunt.
The one other exception I can think of is the religiously celibate, who might be a-okay with it from their aunt to cheer up a cousin, but I’m sure not doing it.
Yeah, I have to assume 18 year old women are on average way, way, way poorer than 40 year old men. That’s true regardless of the gender, 40 tends to be a pretty high spot in personal capital.