And still there is a way to reliably reach even the remotest areas where people live. Getting medicine there can, at least to a degree, piggy bag on that.

Unless it is a AI powered blockchain drone, that would be unbeatable!

Like the comment said to which you are replying, there isn't a fast enough supply chain for deliveries which 'go stale' far more quickly than Coca-Cola does. Therefore, no, they can't piggyback on that existing supply chain.

Given that cooling is a thing, yes they can. Unless stuff goes shale within minutes, in which case even a drone won't help you.

What are you actually getting at here? If I had to pessimistically guess, it sounds like you're trying to signal "I'm part of the group that can see through the drone marketing hype. They can't fool me."

Drones are much faster than cars at getting to remote places. There are many, many villages throughout the African continent that can take several hours to get to due to lack of paved roads (you need a 4WD, and it'll be a bumpy, slow ride). Sometimes the territory is dangerous to drive though. Drones can also be used even in more developed areas when roads have been completely washed away by a flood/hurricane/landslide/etc. The industry certainly has been hyped, and it's still early days, but your claim that they're not useful is absurd.