At least in one species, older females are valued for their accumulated knowledge and wisdom.
Researchers have determined that female killer whales become key leaders in their pods after they age out of fertility.
We can trace many of our problems in our society to male top-of-the-hierarchy attitudes and behaviors. Just look at political cartoons and see that the "establishment" is almost always depicted as older white males. We all know who they are.
Time for them to move over and let women have a crack at a bigger role in running this country.
http://www.nbcnews.com/science/environment/female-killer-whales-take-leadership-roles-after-menopause-study-n318036
