I understand the appeal of anonymous currencies like Monero (hence why they are banned from exchanges), but beyond that I don't see much use for crypto
E.g., you could do what World of Warcraft does - Gold can be earned/exchanged in game, and can also interact with the real world in nebulous ways. Using the hyper advanced technologies of relational databases and ignoring financial legislation, they have enabled ultra-high-throughput microtransactions, with the added benefit of not spraying the public ledger on to the desk of every law enforcement agency on the planet.