text: One major reason not to drive a car is that cars are often very expensive. If you live in an area where public transportation is an option, it may be worth it to not buy a car. You'd both help the environment and save a lot of money at the same time! If you're in a city or an area where many things are within walking distance, then you may also notice that there is a lot that you can do, such as walk to a mall or walk to a park, and you would not be harming the environment in any way.