text: The first piece of evidence in favor of driverless cars comes from the information that "Google has had cars that could drive independently under specific conditions since 2009." The fact that Google has been working on driverless cars for so long proves that driverless cars are a good idea. This is because if Google has been working on this technology for the past seven years then that means that they have been constantly improving their product and that it is pretty far into it's development period. That means that the cars are able to be manufactored pretty well at this point even if they're not perfect, which helps to prove that with that much work done on it the cars have many improvements from the original product and will be easier to manufactor and sell in the future.