Why? I'm very happy with my body as it is, and I'm very healthy. Also, why do you assume I don't already attend a gym? Not everyone feels the need to have pumped up muscles and bulging pecs to feel good about themselves. I'm lean, healthy, and confident. That's all the matters.
Tell it, Caesar! I (and many, many others here) think your body is perfect from head to toe. Glad you have the self-esteem and confidence to like and defend your genetic blessings.