I think rather than expecting "old people" to be stereotype knitting grandmas, we're seeing that people are more individualistic no matter what their age. People still talk about feeling old, or getting too old for this and that, but that's mostly a habit and bad excuses. The hippie generation is now in their 60s and I don't think there has ever been a generation with that much time, money and attitude to truly do what they want. Caveat: in the well-to-do corners of the world and society most of us live in.
I still think elite athletes will always be young, there's no beating biology
but in the sports that take time, money and patience it's quite logical that the over-40s will be well represented on the amateur level. A generation or two ago it might even be seen as a little unseemly for a grandmother to compete in amateur sports, now she's probably the hero of the neighbourhood. The social constraints are pretty much gone so it's down to how much training you put in.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett