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?
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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.
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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.