I prefer a human driver for many reasons, one of these concerns being how well robotic drivers really could drive. In most conditions, an advanced robot could drive decently. However, there are many concerns, especially with the robot's system failing, or possibly being unable to navigate difficult-to-drive roads. A human is far more reliable, even with advanced technology. Technology can't really ever fully replace humans, and yet self driving cars could be a possibility in the near future. However, the time has not come yet, so for now we should stick with human drivers.