Credit cards are usually valid up to 72 hours. Transactions carry out once online connection is established. If a transaction doesn't go through and a product was purchased (taken) it's up to your government to handle it locally. Paper wallets exist for bitcoin but they're kind of inefficient at the moment. (maybe crypto people will argue this)
At the end of the day, if a government accepts bitcoin they also accept the duty to monitor transactions, enforce their validity and even print crypto physical.
Credit cards are usually valid up to 72 hours. Transactions carry out once online connection is established. If a transaction doesn't go through and a product was purchased (taken) it's up to your government to handle it locally. Paper wallets exist for bitcoin but they're kind of inefficient at the moment. (maybe crypto people will argue this)
At the end of the day, if a government accepts bitcoin they also accept the duty to monitor transactions, enforce their validity and even print crypto physical.