There's a scene in Demolition Man (1993) where leading citizen Doctor Cocteau (Nigel Hawthorne) takes 20th Century police officer John Spartan (Sylvester Stallone) to a fancy restaurant as a token of appreciation for saving his life from 20th Century villain Simon Phoenix (Wesley Snipes). Since Spartan had been in a cryogenic freeze for decades (along with Phoenix), Cocteau explained to him the Franchise Wars and what happened to McDonald's and Burger King. In the end, one franchise had become the paragon of fine dining, and that is where they were having dinner.

At Taco Bell.^*

There's no law which says cryptocurrency needs use cases, that it needs to bring forth a new paradigm, or that it has to be a "real" crypto. In the end, cryptocurrency is a form of money. As long as it can fulfill that role and as long as people are willing to use it as money, that's the bottom line.

Everything else we think of when we discuss crypto is just "nice to have" but not essential. Being money is essential. No one would have cared about Bitcoin had it been an alternative to cigarettes or postage stamps or airline miles. It was an alternative to money, and that leads us to where we are today.

There could be a day when Bitcoin and Ethereum disappeared because they were beaten by Dogecoin, so it would be widely used. There could be a day when Dogecoin and Shiba Inu disappeared because they were beaten by SafeMoon, so it would be widely used.

If people want to use some thing as money, does it really matter what it is as long as they are willing to use it?

^* US-versions of Demolition Man featured Taco Bell as the sole survivor of the Franchise Wars. Other versions of the movie have different sole survivors.