The difficulty in educating people about cryptocurrency is that you first have to make people unlearn things. There are a lot of misconceptions about cryptocurrencies and some of this is pretty ingrained into people. I would blame the mainstream media, which parrots the propaganda of banks and governments about Bitcoin. That is why educating people is very difficult.
They will always doubt you at first, but the important is you do your job to educate them. After that let them be, we let them see us succeed for them to fully believe us because we believe in the saying that to see is to believe. Im sure that if they see us succeed in crytocurrency they will not hesitate to invest on it.