text: In conclusion, thats why limiting car usage would have a good affect on our communities and a good affect on th ewhole world in general, because it helps keep a friendly enviroment, and it saves money and time for family and friends.    Driverless cars are not good because they could be dangerous because machines and equipment are known to malfunction. It is a proven fact that factory equipment, power tools, and even common cellphones malfunction, so it could pose a huge danger if a car were to malfunction.