What are some positives and negatives of having artificial limbs?

Disadvantage . 1. Psychologically you still know it's artificial. 2. Make you look like and function like more normal, whenever you do not want to. 3, limb stump skin discomfort, even brakes down. 4. Requires you to have appropriate joint range of motion, which needs physical therapy and your effort to put in. 5. You have more chance to fall than just sitting in wheel chair. 6. Needs more energy to spend.