Do you really believe that world governments will allow cryptocurrencies to be replaced or at least to become one with fiat money?It's impossible
If a majority of people believe in the value of crypto, there will be nothing world governments can do to stop them.
Money is whatever people agree money is.
but if there are laws like minimum wage where people need to be paid a min of Xfiat
but if there are laws like income tax where people need to pay a min of Xfiat
but if there are laws like court fines where people need to pay Xfiat
then fiat will remain in circulation as the dominant currency and will continue to be legal tender
what you have to learn is although in america the dollar will be the legal tender. it does not mean that to americans the euro is non-existent/not allowed to be exchanged/traded
what you have to learn is although in europe the euro will be the legal tender. it does not mean that to europians the dollar is non-existant/not allowed to be exchanged/traded
and so once you grasp that mindset you will understand that bitcoin and non-government created crypto will have a place in the world as a asset currency that sits beside but not replace legal tender.
last thing to really emphasise..
do not think that encouraging governments to tax bitcoin suddenly makes bitcoin legal tender.. it DOES NOT. i emphasis it does NOT
a government having something like bitpay/coinbase as a merchant gateway for the IRS is nothing more then a gimmick. much like saying that people in america can pay for american taxes with euro's by the IRS having a bureaux-de-change kiosk at the tax office to swap euro to dollar..
in short your not actually paying taxes in euro.. or in bitcoin. you are just selling your euro/bitcoin for dollar and handing the tax office dollar..
all that you are doing is encouraging governments to take 20%+ of everyones income every time bitcoin moves from person to person.. you are not winning any legal milestone. you are just costing yourself profit, while thinking the gimmick is helping bitcoin.
in reality and longevity it is actually killing bitcoins ethos of not being 'just like fiat' .. thus making people start to think that there is no point in using bitcoin if it becomes nothing better than fiat