Are floppy disks dead? No. Will they ever die? Maybe not.
My six years in the U.S. Navy gives me a deep appreciation for the way that the military can preserve a technology far beyond anyone's reasonable expectation. I served on a ship (USS Long Beach CGN-9) in the '70s that proudly used vacuum tubes, magnetic core memories, Baudot teletypes, vector graphics on storage tubes, mechanical analog computers for missile targeting, and sound-powered phones – all the while calling itself a showcase for advanced technology. Of course they still have floppies!