People do not believe in crypto currency. They say that crypto is not fixed. As fiat - gold. Where does the value of crypts come from? What do you tell people?
if there are parties who ask like that, I think we don't have to be very long to explain to them. if people don't trust digital currencies, whatever their explanation they won't believe it. the more important thing we explain to them is. that digital currency (bitcoin, etherum) has value because of its usefulness and many people value the digital currency.