My guess is he's 20 years old or so and doesn't want to admit that the body ages and changes.

If my back or neck hurts riding a Madone or Tarmac because my body is no longer as flexible as it once was or the pain from tendonitis flares up in my elbow because every little road impact transmits to my arms, then I'm not going to ride. If I can get a bike that is fun to ride without causing pain, then I'm going to ride and exercise more.