A few years ago, I came across a study which showed the probability of ever getting married dropped sharply if she had never been married by age 30.
The study didn't go into likely reasons. My own hypothesis is that a woman who hasn't found somebody who meets her criteria by 30, has unreasonable expectations. Additionally, for every year that you're living by yourself, you become more used to being independent and less willing to compromise in a relationship. After 30, more and more of the supply viable potential husbands have been mostly snatched up, and women over 30 have to compete with women under 30 for the rest.
Also, for the same reason people are hesistant to buy a house that’s been on the market for a long time. Even if the house looks great, you’re going to wonder why it hasn’t sold yet.
Ok, that’s twice I’ve read a post that is right on, and you posted it. We are appearing redundant, at least in our thoughts.