How do we change the public's view of crypto world is by spreading positive news about crypto and not spreading hoaxes which caused crypto to be viewed negatively by most people. Other than that the way we can change the public's view of crypto world is we must making them understand properly about crypto and spreading positive news about it. I think that way we can change the public's views about the crypto world.
I would actually go for a transparent story instead. Just spreading positive news will make bitcoin seem even more shady. It will look like it's another multi-level marketing company and you're trying to make people sign up. What's funny is that people close their minds right when they heard something negative about bitcoin, yet they are still open to the idea of using fiat money every single day. Right now fiat is constantly inflating because the economy of a lot of country are going down. You can't buy the same amount of things that you were able to buy before and it's only recently people get to know that. Everyone's sleeping on the idea of inflation until it got out of hand. Keeping a transparent story will reveal all the negativities about fiat money like how fiat doesn't really have a value at all.
One huge reason why people don't want to trust crypto is because it's being used by criminals, according to tons of articles on the Internet (who only published that so they get more traffic, btw). On the other hand, fiat is being used even more by criminals but we don't see people losing their trust on fiat. SMH.