now the market value is dull and the price of bitcoin is also low and is at loss ...so iam asking that if i explain now about the bitcoin they may think as a scam...
Every time is the right moment for us to share our knowledge to other people about bitcoin for them to become interested to what it is. If they didn't believe to what did you say, it is better to ignore them because it is not a matter after all.
There is no right time to share knowledge because you can share it all the time on the people that interested on it. It is not your fault if they do not believe on it because it is their decision if they want to take or leave it, what matter the most is that you make effort for them and those who put effort on their own can be benefitted too.