So the question should really be: how do we get people who are afraid to move away from the old money system (fiat) to adopt Bitcoin?
I don't think we need to do anything about it, simply because they don't know Bitcoin makes it unacceptable for them to use. People use or adopt something because they have good knowledge about what they are using. It is not in our power to get people to move away, there needs to be a thorough understanding of the system before they can practically advance into a new payment system.
Tell me why your barber will reject BTC payment, not minding an additional 20%, probably he doesn't have any clue about Bitcoin.