I agree with you. We ourselves should contribute to the promotion of bitcoin to the masses. If we tell our friends about bitcoin, maybe they will tell someone else. And some of them who have their own business may also think about accepting payment in cryptocurrency. That's great.
I also made a small speech at a business conference about cryptocurrencies. If this is what we can do then spreading word of mouth is the only option for us. I usually talk to my classmates about cryptos but they have misconception between crypto and network marketing. Explaining this can be a pain but this worths to spend your time explaining to others.
In time, they will understand what you're talking about.
I was hesitant at first also upon hearing such digital currency way way back.
Many people have negative connotation when you talk crypto because they have read articles of hacking, stolen funds, etc.
And they didn't know nothing about why those bad circumstances happened.
They will understand it on their own. Hard to push somebody to believe you.
Let them ask you first and not the other way around. That strategy might be effective.