I'm ok with quiet, unmanned, self-driving delivery trucks that automate the package delivery process. I am not looking forward to delivery drones buzzing around overhead becoming a normal occurrence.
They won't. They're an absurd impracticality anywhere outside of Silicon Valley (suburban homes, no weather ever), and completely unnecessary even in those ideal conditions. People are excited because they're cool toys, not because it actually solves a problem.
Imagine: saving the 30 minute to 1 hour round trip to a store, or waiting half the time for a driver to wade through traffic at peak hours.