text: Lastly, driverless cars seem really expnsive. In order for them to work they have to build all new roads to ensure the safety of pedestrians, drivers, and passangers. They also have to pay for all of the research that goes into building a working driverless car. All of the money spent on these cars could be used to pay off the trillion dollar debt the United States is currently in, or it could be used to help the homeless get back up on their feet and get a home again. There are plenty of things we could use the money for.