Crytocurrency

A lot of people think cryptocurrency is a scam. Many a time when I try to tell them to invest in this new form of currency they decide to wave away the idea. Even when I show them examples of testimonies and different experiences of many people on the internet. There is a clip on you tube where a certain man revealed that he bought so many bitcoins but later he regretted because the price of a bitcoin decreased rapidly due to factors about which I have no idea. Anyway I would to know how to convince others that cryptocurrency(steem, bitcoin, Monera) is not a scam