All my family knew is I'm working online and not engage in any cryptocurrency trading but some of them including some of my relatives knew about the cryptocurrencies. Some of them believes that virtual currencies are scam and they got their information from the news where scammers are being arrested by the authorities.
It's part of the challenge to be judge negatively when you are focusing on something new that is not fully accepted by the government.
We are in the early stage of crypto where regulation is not yet strong and adoption is low, it's just like you are convincing them with something that will be valuable in the future but they are too negative to accept changes, don't worry mate, you are doing right, you are just sharing the opportunity, so if they won't believe, it's only their loss not yours.
I'm still trying explain to them that cryptocurrencies are not scam and they are use only by the scammers to steal money from their victims.
You don't have to do it all the time, once you explain to them, that's already enough, if they are open minded, they can do their own results.
Don't waste too much time, let them come to you and ask you.