Bitcoin is the first cryptocurrency if you are a crypto enthusiast maybe you have more popular with ethereum

Ethereum Blockchain is more to be used in any system blockchain technology. If you ask to a newbie crypto enthusiast maybe they only know about bitcoin.
However 5G Network, Blockchain Technology, Industry 4.0. Blockchain will the new technology for the future. So crypto is the beginning

or maybe if cryptocurrency has many manipulations, cryptocurrency will not be adoption again in the future (only blockchain technology will be used for)