Airdrop is pretty much useless because its proprietary and only works on apple devices. A useful tool for photo sharing has to work for almost everyone.
Let's try to rescue this statement. Airdrop is useful in general, but there are still large pockets of people for whom it's useless. Large, like don't know, Europe.
Airdrop is the kind of tool that follows Metcalfe's law (with "network" being "people who can Airdrop to each other"). In places where Android is the dominant market player, you'll have little luck trying to use Airdrop to exchange data with other people. This is not dissing Airdrop, just calling out that there's a huge market segment that still has this problem.
That's the case pretty much everywhere, including in the US. I thought that the post implied some structural reason why Airdrop can't be used in Europe by people with iPhones.
Something is not "useless" because it is only "useful" to a portion of the population. Floppy disks were a useful tool for file sharing in the 1990s, but not amongst people who didn't own computers.
