When is something no longer needed? Most of the time there is no hard date. They may be virtual things, or concrete things.
One thing that has become strange to me over time, is my signature. It does not really matter what I scribble, it has regressed to a squiggly line, which is a shade better than an X. It is always accepted, as no one checks; they have not checked for a decade. If you buy something online you just give them numbers, so what is the difference if you are in person, face to face, toe to toe?
I long for the day when I can get an implant with my ID linked to the global network, No need to carry money, or driving license or passport. My car has one, my cat has one, I am still pending.