I am sure that the cryptocurrency will very soon enter the life of every inhabitant of the earth and will remain for a long time. Cryptocurrency does not stand still, it is constantly evolving.
In every life, cryptocurrency is needed as a means of storing and transferring money. At the moment, cryptocurrencies have a very high volatility and therefore they are not a very good tool for saving money.
If cryptocurrencies succeed in overcoming volatility, it will be very good.
Of course, if you plan to keep money in the cryptocurrency for a long time, then volatility can even help you make money. But if you want to use them and pay now, then volatility is harmful.