I am not sure the percentage (99%+?) but most people don't grok how money actually works, they consider it something like water or air which is looked at as a given instead of something which was created according to an engineered system. If someone doesn't understand the history of money and what money actually is they will never 'get' cryptocurrency and why it is so disruptive.

Trading goods, shells, physical gold/silver, notes of credit, private gold notes, public gold currency notes, fiat currency, credit, and finally cryptocurrency.