It is only when you tell people about bitcoin, you will know that people still doubt about bitcoin. Many people still doubt about bitcoin. I have a good experience on that. I have been a preacher or a teacher of bitcoin foe years so I know what people say about bitcoin but many of them later believed because of the way I do things from bitcoin investment and trading. You can convince some through your success stories.
People become doubtful about Bitcoin especially when charts turn to red. We have been watching this movie over and over again cycle after cycle. When Bitcoin does well and reach new ATHs, people stay quiet and avoid talking about Bitcoin. But once the market crashes, they say to have always knew it would happen sooner or later.
Even when we share success stories, there are many people who still don't give it much importance, because they don't understand how Bitcoin works and why it would have a value. It's not part of their universe and hardly ever it will become anytime soon, unless the government which rules their lives tell them Bitcoin is a good thing and that they should adopt it.
That is the reality of the world from the masses' point of view. Common sense rules. If most people are doing something, it's good, but if it's just a minority, then it's dangerous and should be avoided.