Problem is it’s been “just about” since the mid-70s and really the last big step we took towards it was internet commerce which makes us buy a lot less in person. Prior to then it was debit cards. And this bitcoin idea is really nothing more than enhancing those, it’s either good for e-commerce or can be used like a debit card. If neither of those could get rid of cash the same with bitcoins ain’t gonna do it.
I see things a whole lot different than the 70s. I remember that time and it’s nothing like it is for today, in terms of cash. The internet and the web made a real big difference there, too.
Within a year, all the cards that people use are going to a sign-less and pin-less transaction and all the vendors will be changing their machines. It will be a slide in and out, and the transaction is done, without any further action on your part.
No, things are way, way different now.