Well NFT was completely useless from the beginning on. Cryptocurrencies, on the other hand, are very useful for a whole lot of blackhat use-cases (and it seems like they are mostly useful for that, unfortunately).
Same applies for AI. There is a whole lot of lucrative bad stuff that can be done with them, so they won't become worthless. Not clear yet if they will bring any good to the world, or if the balance will be mostly on the evil side (like cryptocurrencies).
Don't have to be a blackhat to enjoy having control of your own funds. Plenty of people don't trust their banks.
I know someone who got his account shut down simply for moving his salary to his home country, where he was building a house. And that causes all kinds of problems, now he's not able to take a legit work, and even identify himself on government websites since that service is also controlled by and connected to a bank account.
Now it's up to him to prove that he's not funding terrorism (we're close enough that I'm positive this claim is ridiculous) for moving his own money between his own bank accounts. People do fall between the cracks in these automated systems and it will only get worse with time.
Unfortunately people are retarded and can't see the true benefit of cryptocurrencies and are only looking to get rich quick and it ruins the entire ecosystem.
I'm quite sure that if cryptocurrency were used at the scale of bank accounts, far more people would be far more screwed over by its much larger cracks.
I would expect him to be scrutinized to a larger degree had the money come from cryptocurrencies. Both sending and receiving banks have money laundry protection schemes.
Same applies for AI. There is a whole lot of lucrative bad stuff that can be done with them, so they won't become worthless. Not clear yet if they will bring any good to the world, or if the balance will be mostly on the evil side (like cryptocurrencies).