There is a huge competition between cryptocurrencies, many believe just dynamic and self fulfilling ideas with different properties and a variety of incentives may survive!
The cryptocurrencies that will exactly survive:
- Bitcoin
- Ethereum
- BNB
- Other altcoins that exactly have a use case, strong and interesting fundamentals, strong tea and professional team, much money of funds, good project and promotion progress & development, listed on middle-top exchanges, have high trading volume and market cap
I think cryptocurrencies are not able to defeat fiat currencies without changing nations culture and ethics! what do you think?
Of course, moreover, for now, cryptocurrency cannot defeat fiat in a matter of legal currency in the world.
The causes are not only about the culture and also ethics, but mostly is about the regulation of the country itself.