Most governments get their money from taxes. If these become impossible to collect, how will the government support itself? They would no longer have control over any currency. Would BTC taxes have to be enforced? Should an alternative be sought? How can a government survive without money?

I'd like to see people's opinions on anything related to this, as I feel that most forum members are better versed in such themes than I am, and I'm open to what everyone has to say.