The enthusiasts don't actually pay for things in Bitcoin but instead horde it so it doesn't really serve a society function as much as it services an ideology.
The Bitcoin core, the true adherents, are approximately the same percentage of the public that did Liberty Dollars; sovereign citizen types that maintain sprawling websites attacking the Federal Reserve or proffering quack miracle cures.
It's a weird sideshow of frauds, scammers, ponzi schemes, multilevel marketing, occult and conspiracy theorists, the kind that listened to Bill Cooper on shortwave ... That's what will eventually be left propping up the value so it's whatever that group can muster. The boom/bust cycle of Bitcoin being approximately 4 years and aligning with presidential elections could be a coincidence... Let's see what 2025 brings.
Regardless, someday Bitcoin will be integrated into their paranoid delusions as part of the enemy plot and these last holdouts will abandon it.
But that's the long game. I might be talking 25 years here. Or maybe 25 months, who knows?
I had a well paying tech job and it was still about 80% of my income one year.
So you guessed wrong on that one.
Regarding the long game, it could go longer. You might consider The Great Disappointment: https://en.wikipedia.org/wiki/Great_Disappointment
It was the purest bunk. Sincere bunk, well meaning bunk, but still bunk. It was proven wrong and wrong and wrong again, but not only did some people take their beliefs to their graves, but an offshoot is still going more than 150 years later.
Sure, it's a dead asset producing nothing and having not much use. But it's easier to transfer than stocks or bonds, and does not suffer of unexpected supply inflation.