Slowly all countries will move to legalizing bitcoin, but that means, their citizens will be forced to comply with the KYC requirement and pay taxes on it. That's sad but that's what is imminent.
Yes, mass adoption will come with regulations and governments collecting taxes, its too naive to think otherwise. If you want to escape from taxes, you need to have your private wallets and to buy things directly, although I wouldnt be surprised if governments come up with some software in the future to track those transactions.