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.
I don't think people are that negative about cryptocurrencies. Most of the people don't know bitcoin and they are neutral.