I never think that Bitcoin can be made centralized. Bitcoin is decentralized.
Although when we are using Bitcoin, trading it on exchanges and other activuties rekated in Bitcoin, we need to do through the centralized exchanges and others, it doesn't mean that the Bitcoin centralized, does it?
How can we exactly track the Bitcoin from one wallet and others? Moreover centralized relates to controled systems. How do the governments will take the full controls of al transactions in the world wide of Bitcoin?
It is impossible for the government to make Bitcoin centralized, because it is impossible for the government to control all Bitcoin transactions on
the internet. Therefore, if there is a country that prohibits the use of Bitcoin, that country cannot prevent its residents from using Bitcoin.
I have a friend who lives in a country where Bitcoin is banned, but my friend can still own and use Bitcoin. That proves Bitcoin is decentralized,
this is what makes Bitcoin able to give users the freedom to manage their own finances without a third party. The government can only regulate
exchanges by requiring KYC, while not all exchanges require KYC procedures, although I know nowadays most of the exchanges enforce KYC.
Then we can make Bitcoin transactions without going through exchanges. That's why I said it was impossible for the government to make
Bitcoin centralized.