@bob_, why? Because it’s crass, rude, and crude. Tasteless and boorish. Both too personal and callously impersonal at the same time. Because my behavior never invited a comment like that, and to make such a remark suggests that it did—so it would have been an insult to me. Because if sex were on the agenda, I would never cheapen it by thinking of it as “getting some”; instead it would be part of a relationship and an expression of sincere feelings, not just physicality; and if sex were not on the agenda, it would just be an embarrassing presumption. It’s no business of someone else’s to speculate vocally on my private behavior. That’s why.
If someone said that to me, it would tell me enough about them to affect my opinion of them, probably permanently.
Even if the young woman were known to be looking for casual sex, I would consider this remark to be equivalent to calling her a demeaning name, and I wouldn’t do it even if I thought she deserved it because that would be demeaning to me.
I know attitudes have changed, but I did come of age during the sexually liberated sixties, and enjoyed them, so it’s not like I’m speaking from beneath a stack of lace doilies.
I suppose it’s possible to develop a group culture in which such a remark means nothing or is harmless, but I can’t picture myself being part of it.