I'm wondering because I've heard much of military (not sure if entire DoD) prohibits USB sticks. Also many companies warn their employees to not insert USB sticks into company computers including personal because don't know if the stick contains bugs. Maybe get rid of USB and be done with that problem. What bugs me are many systems not on the internet and also optical media is being phased out.
Yes, the old story of a bank that had security seminar of scammers that dump USB sticks in parking lots, tempting employees to pick them up and insert into computers. Then the next day bank IT security people do a test by dumping sticks in parking lots, and find that half the seminar attendees took and inserted the stick into their computers!
USB will not disappear unless something better replaces it.
So far that's nothing. Most businesses I know of still use USB for portable storage. This is because you can have many types of storage with USB from high capacity hard disks to small flash drives so cheap they're almost disposable to adaptors for every other kind of storage.
And USB is not just for storage, try finding a wired KB or Mouse that isn't USB, half the Bluetooth peripherals use a USB dongle. Every phone comes with a USB cable for charging, printers, cameras and more, the lot use USB because USB is everywhere. USB headphones are more popular than ever.
Very few businesses restrict USB, most of them have very specific reasons for doing so (I.E. DOD/MOD or PCI/PII requirements). The oft quoted "USB sticks in the parking lot" hasn't been a credible threat for years as OS's no longer use autorun.
So if USB is soon to die... What is going to replace it? I've just bought a new gaming PC a few months back, heaps of USB ports but not much of anything else. I cant even remember if it comes with PS2,