The people keeps debating because it is seen the other way around. Instead of being a stand-alone currency, they treat it as a speculative asset. Though you can't blame them for using it in that way since only a few, select merchants do accept cryptocurrencies as payment, and they also immediately convert it to USD/fiat, because that's how the government wants it and it would probably stay that way for more years.

We are locked in on a system made and decided by the government, and even how much you want to change it to foresee a world running on cryptocurrency alone for valuation, making that possible would still be difficult as of the moment.