More common than that reaction, is the go-to excuse of "I don't understand how Bitcoin works and I'm not using something I don't understand."

Reply "Do you understand the fundamentals of how the numbers in your purse, wallet and bank account, that you perceive as money, came into existence and where their value is derived from?"..
 (Blank look).
.. "No? Well, find out how that works and then come back and ask me how Bitcoin works".