Don't underestimate the psychology.
Traditional attitude: I only trust it's real if I can physically touch it with my own bare hands.
21st century computer geek attitude: I only trust it's real if I can verify the cryptographic proofs with my own bare hands.
I think there's too much emphasis on BTC/ETH/whatever ETFs, and not enough emphasis on making it easier for people to buy $5 to $100 in cryptocurrency via cards at corner stores. The former is better for pumping price, but the latter is much better for actual adoption.
I don't get why Apple's restrictive app store policies don't get criticized more. One company (with market cap approaching $1 trillion) gets more de-facto filtering power over mobile internet users than many governments, heavily wields it, and so few tech people seem to complain.