First of all, Kung Fu gives you fighting ability. You also reap health benefits and are delving into a deep art with a rich heritage. Whatever style you practice, you make it your own. As Bruce Lee said, you learn to "honestly express yourself". You are placed in control of yourself. Kung Fu is also fun and can be practiced into old age. Achieving a high level of skill requires an enormous amount of self-discipline. Training hard changes character. Achieving a high level of skill in Kung Fu gives someone insight. Combine all of these aspects with Mo Duk and you have an improved person.