I can convince them by showing proofs that people really benefited in investing here in Bitcoin. We can search lots of people who did such thing. But of course before we convince someone, we have to do it first to ourselves. We have to try it first and when we got the result already, we have the confidence to convince or to tell someone that investing in Bitocin is indeed a good thing.
Many people already know about Bitcoin and invest in it. To many people I saying to be more careful when investing in Bitcoin. There is a risk of losing money.