It’s all about doing it gradually. While Google may revel in showing off their robotic vehicles, the reality is that it will be some time before these are mainstream purchases. In the meantime, multiple manufacturers including Volvo, Tesla, and Mercedes-Benz are currently rolling out vehicles that can take over driving duties under some specific circumstances. Not only are these situations—such as low-speed driving—easier to program for, but they also help build up a level of consumer comfort for the technology that will be necessary for completely autonomous vehicles to eventually take over.