Try to convince them that fiat is the biggest scam of them all. I still remember a video I saw where the author explained how fiat money has stolen more of people's time and value than even the building of the pyramids. By at least a hundred or thousand times, I cannot remember the ratio. But it was enough to show how much of a monetary slavery we are currently in. At least with BTC, you are now responsible for your own life and it will enrich everyone and everything around you. I still dream of the day that the dollar is defeated and everyone, neighbor and otherwise, become truly free. Imagine having sound money. Everyone will become happier. You'll have more time to yourself, you have to work less at jobs, and everything becomes not only more productive, but cheaper. It will be a massive renaissance. If that dream can be sold to people of what awaits, it will bring them more to our side.