I have never heard of Cardano and Ethereum seemed to market itself as a way to run the internet and government inside of blockchain while the reality was it was never used for anything but speculative investment.
Cryptos have basically burned the idea and the general public will probably not care of any future solution since all of the previous ones were scams or not very useful.
These cryptos all promise the world and deliver nothing.
For example, Uniswap is a decentralized exchange living on top of Ethereum that frequently has volume higher than Coinbase. A couple years ago that was the "end vision". Now it's an everyday reality.
Loans, mutual fund like assets, lending etc. The ecosystem is booming.
Cryptos have basically burned the idea and the general public will probably not care of any future solution since all of the previous ones were scams or not very useful.
These cryptos all promise the world and deliver nothing.