MR_PERFECT said:
I don't think being 25 and not being married is a problem. During our times, it's a safe bet to marry a woman that is over 25 and has been in a few relationships, so that by the time she gets to you, she'll know what she wants.
What I was saying was a girl in her late 20's and early 30's, and maybe a little older, that hasn't been married by then (or at least gotten very close to it at least once) is a red flag because there's few women that old and that far past their prime that are attractive and desirable that wouldn't have been. It jives with my experience. Women like that are usually perpetually single for good reason. No one wanted to get serious with them, or maybe she's just a serial dater, which is really worse than a woman who's been in a LTR or married.
I just used 25 as cut off date, but it's definitely somewhere in her late 20's. I said it was a red flag, not a total dealbreaker. And of course there's a few exceptions, not many, to any red flag. I don't really think there's many worthwhile women over 25 to begin with.
The fact that a few people would disagree with this, is really just wishful thinking on their part and evidence that they know it's a red flag.