So when the topic regarding bitcoin brought up, they usually says negative because of what they perceived in the past. My question is how we can turn their perspective into positive? I have good motive on that because I also want them to have a better lives by understanding how it works and also how we can chance their way of living by using it.
Do not waste too much time on anyone that does not believe in bitcoins or choosing to hold their negative perspective still. You can share the facts and give the person proper information, but do not try to force your opinion on them so they do not think that you will gain something from them joining or choosing to invest in bitcoins. Environment affects perspective, and you will be surprised how many people's perspective have been affected by public opinion, they choose to just accept what has been said about bitcoins without going out to try to find out on their own if what they have been told and made to believe is true. Many people have accepted wrong ideas and information about bitcoins. If you try to correct this people and if begins to want to turn into an argument, just stop talking and let them be.