Very seriously.

Think about it. By the time a guy is 30, he's been out of school for a few years (usually) and he's long gotten tired of living with Mom and Dad (unless he's a millenial.) Unless he's pathologically shy, or a hermit, he's been involved with a string of women, by that stage of the game. He's managed to dump them, one after another, and/or they have dumped him. Either way, what he's looking for in a relationship is apt not to be what most women are looking for. He's a guy who tends to take off, or gets sent packing.

This is going to sound horribly judgemental, but when I was 31, I came up with the following theory: A guy over 30, who's never been married has one of the following issues - He's too involved with his mother, or he's too jealous of his wallet, or he's so vain he thinks no woman is good enough . . . or he needs to come out of the closet (maybe to himself.) It all kind of boils down to not wanting to commit to a women.

There's a saying I came across (in a women's magazine.) This is, also, horribly judgemental: "Women over 30 who are still single are the cream of the crop, while men over 30 who are still single are the bottom of the barrel."