UPS-type drivers are very safe. There are lots of trucks, resulting in many accidents nationwide, but they are far safer than the average driver. (Remember that many/most road deaths occur at night and have some relationship to alcohol.) So taking some of them off the road won't contribute much compared to the slight but undeniable risk of a drone-aircraft collision killing many.
Yeah, they have tremendous safety records. I should have focused on the other "opportunity cost" of fewer deaths dues to fewer car trips made by consumers.
Also, we have no idea what the drone-aircraft collision risk is. That seems like something that could be easily solved by strict control over who flies where in the sky. I'd guess that more people will die from these things falling on their head.
