Well, to be able to change the perspective of individuals is to have knowledge about bitcoin, hence, people will tend to think continuously such a bad thing, scam and illegal. We can enlighten and change the misconception of many people about this. Also, stop being one of the scammers. People tend to think bad thing about bitcoin is because of scammers. Perhaps, there are having numerous scammers in bitcoin and cases of scams, hence, this would affect the mind set of people. Moreover, telling them the facts about bitcoin and that's we need, education.