Let’s be honest, how many doughjo boys do you see practicing Karatedo? You know what I’m referring to, right? Those Karateka are in good shape? Factor in what you want (age, diet, co-morbidities, etc.) and then ask yourself, “how many of them are fit?” That is, do they have the requisite strength, flexibility, and stamina to perform Karate-do to a satisfactory level? If you’re even a little bit honest with yourself, I’m guessing you answered: (1) you see a lot of doughjo boys in the dojo, and (2) they don’t have an adequate fitness level to perform Karatedo to an acceptable standard.