How is the communist regime's governance in China "lax?" There's probably significant worry on the part of the CCP to keep drones controlled as they may see and record things that are politically inconvenient for this autocratic regime like political prisoners being abused or heavy-handed riot police action.

Chinese aerospace laws, from a casual googling, seem to be very strict as well, and geared towards favoritism for their military.

If drones take off anywhere, I imagine it will be in the most transparent countries, like the ultra-liberal Scandinavian democracies. I doubt drones are autocrat friendly for obvious reasons. I also imagine there's a nice middle ground between planes and rc hobbyists with defined paths and lots of rules that will eventually shake-out in many countries. Drone delivery just makes a lot of sense ,perhaps not so much with toothpaste, but with, say blood or organ delivery where a proper helicopter costs many times more and an accident is lethal. A drone accident is just a lost resource.