Quote Originally Posted by Ludo View Post
But you don't kick the leg or the side of the body with your foot unless your using the heel of your foot. The ankle doesn't have the kind of weight it needs nor does the foot have the kind of durability needed to produce effective results to those areas without a high risk of hurting yourself in the process. Broken toes/feet are the bane of kicks as a whole.
That's really not true. Also, you have to remember that the instep (i.e. the top of the foot) is only ONE striking surface with the TKD roundhouse . . . TKDers (and karate fighters, for that matter) also learn to strike with the ball of the foot.