Why cryotocurrency is useful?
What do you like best about cryotocurrency?
What makes cryotocurrency better then fiat?
Cryptocurrency is very useful for payments in term of digital money and because of its volatility characteristic , no one will be consider as late even if you are new in crypto , you always have a chance to buy in low price , just wait for a dip .
You are just limited to your own thoughts, I think that there crypto currencies are the future currencies and in future we can expect that all the people of the world will give more preference to use crypto currencies instead of fiat currencies.