Yes ofcourse, it is already part of our life. This is the most common form of payment we have made. From the generations in the past it becomes a significant figure of trading.
It was the most common way of payment but now it is not like this, it is modern age where all of us need to have something modernized and well developed which is now a day digital money, as we can buy all kind of goods with it and we can earn high amount of profit as well, it is rising in price now but having lots of money, holding it for years will give no change but only risk so for me fiat money has no worth as compare to digital money.