Money is used to buy goods and services and there are very less businesses accepting crypto and still the prices are rocket High.
Bitcoin works quite differently from traditional payment means like fiat and as such its value is also determined differently. True, much less businesses are accepting Bitcoin (although the number is increasing) but its value is determined by the algorithm it is built on the block chain technology, some of these qualities are listed in the above quote.
Moreover all government have there own currency, goverment cannot let that sink and can ban these.
Again, Bitcoin isn't competing with fiat currencies, both can easily co exist in a system to serve different purposes.