Long Hair, How Old Is Too Old? [Opinion]

Is there a certain age at which a woman should cut her hair short? Over the weekend, a 50 year old Facebook friend posted about this. She has long dark hair. We've never met in person, but it sure looks great in her photos. Sabine Reichel is a self professed feminist, and "Gray Rebel." She posted an interesting blog in the Huffington Post. Sabine has gray hair past her shoulders. There is a widespread belief that a woman should cut her hair when she hits "The Big 5-0." I don't buy it. My opinion may not count. I'm just a man, after all. Men love long hair on women...period. A lot of women seem to feel compelled to cut their hair when they get married. This puts the new husband in a very awkward position. She'll inevitably ask if he likes it...