For me, its really hard to convince especially for those people who are afraid to change their life. I must say that they don't want to acknowledge the new things to there life.They are already contented on what they already have. If they want to, they must act now!
I agree with you, it is very difficult to convince many people about this, most people should see the results and evidence to convince him, if you have shown the results, I am sure they will be very interested in what you have done in Bitcoin.