In my opinion, maybe a country that still legalizes bitcoin is afraid to lose the use of banks because banks are still very much needed in the country, they are afraid that banks will not be needed anymore.
well, you're right, besides that bitcoin really disturbs the activity of fiat money, because there are some countries that prohibit using bitcoin as a currency. well, but the longer the development of the era will definitely get better, I'm sure bitcoin will be accepted in all countries in the future