Some people get a dog so that they will be forced to exercise more regularly. Some people then regret that decision and want to come up with a solution to minimize their need to walk as much, while still making sure the dog exercises. Enter the golf cart dog walking system. You can sit in the golf cart while the dog walks next to you. Minimal effort from you, maximum for the dog.
This is also great if you have any sort of injury that prevents you from walking properly or quickly. Your dog can still run and exercise and you can still sit and recover.