I'm too out of shape/overweight to gain anything from Tang Soo Do.
90% of Tang Soo Do is learning to make due with what you have, and using it in an efficient manner. Yes, you may never do a full split, break concrete bricks with your hand, or perform a triple jump spinning kick. But only a small percentage of martial artists can. All of us have something that keeps us from being perfect, whether it's a bad back, trick knee, bum shoulder, or negative attitude.
At BTSD, you will learn how to move your body more efficiently, and how to strike more powerfully than if you were to rely on brute force. You will approach your surroundings, other people, and situations in a new light. Within a few months, you will have gained a new sense of physical balance, and find it hard to believe you ever thought Tang Soo Do was too hard or impossible. You will be challenged physically and mentally by class. Some days you will need to take a break, while other days you may be able to hang in there. The key is having the integrity to know the difference between quitting when you need to quit, and when you just don't feel like working.