You can't pay for groceries with crypto yet. The government is making adoption more difficult by doing things like classifying all crypto as assets, so every transaction by a legitimate business requires they have to do a ton of tax paperwork about it. Some countries use bitcoin as official currency, so this not universally the case.

I don't know if adoption will increase, nor do I have a strong opinion on whether it should. But it does solve the specific, narrow problem of lack of basic banking for the poor.