This is a one-sided discussion in that it is ignoring the benefits of weight training for females. Women make up the majority of the attendees at the LA Fitness I go to, and an increasing share of the free weights users–perhaps 25%. And frankly, with toned arms, hard abs, and strong legs, they look great. Posture is greatly enhanced by the right kind of weight training, another advantage to both men and women.
Surely some female Piggs can weigh in here. Weight training, even if only using light weights and many repetitions, should continue into old age for both men and women.