GM, not new here .. concur with your point re: coexistence.. but the masses won't manage a cliff dive from fiat .. the individual or group that sorts out a digestible transition method will have served the world well.
Discussion
I agree that would be preferable, but at this point it doesn't seem likely and it's far from necessary. Glad you're thinking about solutions.
I'm always cautious with people saying, "We need to" do anything.
It also appears I misinterpreted POS to mean proof of stake rather than point of sale, which is what I imagine you meant 🙂