Correct me if I'm wrong anybody, but I believe the IRS wants you to put digital cyrpto currencies under taxable income if you have any type of significant amount of Bitcoin. Still, many people do not do this. It's a light governmental regulation, but nonetheless, it's a regulation.
Who knows, this may happen if the government agree bitcoin as centralized currency and centralized medium of money transaction. But bitcoin organization and miners will not allow this to happen as I know, because they are people get affected because of your mentioned future scheme in tax
How can government agree to accept Bitcoin as a centralized currency if Bitcoin is a decentralized currency itself? Maybe, you wanted to say that government could agree to accept Bitcoin as a universal means of payment, along with their local currency? But why would miners ever want to prohibit this, and how could they actually prevent this even if they disliked such acceptance by government?
I think every miner would be glad if governments treated Bitcoin like currencies they issue.