... as long as the drones are not programmed to throw the delicate parcels over the hedges
...
Seriously though: yes, drones are here to stay, if only because they look good. I cannot imagine they'd be more efficient or more green, though, especially not in a point-to-point mode of operation. After all, if the parcel vans are screaming through, it is due to a race to the bottom in shipment cost - drones are not going to change that.
But I am concerned that the "eventual" sorting out of traffic rules will only be seriously entered upon after a few serious accidents have occurred. The days of "gouverner c'est
prévoir" are long gone.