At the tender age of 48, I'm much too young to understand this thread.
But, if I did.... age is whatever you want it to be. I exercise daily and look and feel ten years younger. And, I'm getting younger all the time.
I cycle as hard as I can, I'm getting the health benefits, but unfortunately, I'm slow.
My first race was an eye opener, not a peleton kind of guy, a better fit would be driving the team car.