I think that the biggest thing in the way of crypto is that most people who hold it, want deflation, which discourages spending and use as a currency.
Also, despite it being possible to see every transaction, you can't reverse a transaction like with a credit card.
At the same time, its being as a tool by regimes like PRC to increase how much they monitor their populations.
Does a single crypto have built in inflation instead of built in deflation?
As a writer, GM, character would for a brief time be paid in BC for secret tasks, but after the Silk Road went down, it switched to Monero.
BC is big enough to be taken seriously. Ethereum might someday switch to a more efficient verification process. Monero is secretive enough.
Everything else, what is the point? What is the feature? BC can be converted onto the Ethereum blockchain.