Yes and medic-vac helicopters also exist because they're responding to genuine emergencies which justifies both the expense and any externalities (e.g. noise and marginal danger) associated with their flying over houses etc. to save a few minutes. Sending flocks of flying vehicles over houses to deliver cables or pizzas because people need them RIGHT NOW is not the same.
I do see scenarios where drones make sense but I have a lot of trouble envisioning people being fine with the skies of suburbia being filled with drones all the time.
They are not very loud; they have a smaller impact than a UPS truck or a pizza delivery guy racing against time. They will get lots of vehicles off the road. I see folks embracing drone delivery as a solution!
I do see scenarios where drones make sense but I have a lot of trouble envisioning people being fine with the skies of suburbia being filled with drones all the time.