I am not sure if this is only my own observation or it is true that yoga is most likely designed for older women? Just correct me if I am wrong with my observation. I seldom saw younger person in our area. Maybe only minimal number of younger person does yoga. Are you interested to learn yoga? There are some store that you can find yoga dvds for you to learn.
As far as I know the reason why older women do yoga because the exercise is not much harder.. Unlike, younger person can do jogging or can go most to the gym since they have a lot of energy to use, so why engage to yoga. For me I never done it or even I don't have any ideas what yoga is all about. Maybe someone can give me ideas about it.