I have not yet decided to tell my friends about the practice of cryptocurrency. There is no certainty that they will perceive the information correctly.
Probably, you are right here. When I told my buddies that I work with Bitcoins, they started to laugh at me. Now, they regularly send me funny short videos about BTC on Facebook, WhatsApp, and Viber.
I prefer not to talk about bitcoin or cryptocurrency with my friends or family. Or if they would ask about it, it would explained and shared to them discreetly. I believe they would be curious and interested when they would see how you benefited from it than sharing and inviting them blatantly. By that, they would do their own research about it and realize themselves the worth of crypto.