Maybe because it still requires a human to be occupied during the task, and they also don't have physical safety stake in the activity. I don't think I'd feel q

Maybe because it still requires a human to be occupied during the task, and they also don't have physical safety stake in the activity. I don't think I'd feel quite at ease if a driver over the Internet had my fate in their hands. Also that brings up the fact that latency and failure of wireless communications could mean death.