Govts ban Bitcoin and any form of Crypto payments since these types of transactions cannot be taxed and therefore will make them lose potential funds for the development of their respective country.
If this is true, do you have any proof to prove this? Because for me it is not the reason. Bitcoin is unstable that is why. The fact that there are still a lot of countries that accept this digital currency is the proof. Also, even if bitcoin and other digital currencies are banned, they can still use it as an investment online since it is only banned to be accepted in the country as a payment but not online.