Bitcoin's privacy isn't very powerful so I wouldn't be worried that some government would rule it illegal based on that. Consider the scenario where you go to

Bitcoin's privacy isn't very powerful so I wouldn't be worried that some government would rule it illegal based on that. Consider the scenario where you go to a grocery store, your transaction points to your face because of surveillance in the store. Buying something online, your transaction points to your physical address. You'd still have to trust the people you trade with, otherwise you lose anonymity, and your transactions and amounts can be traced. Now they know how much you earn, how much you spend, where you spend, when you spend, etc. It's very hard as an average consumer relying on Bitcoin to avoid being traced without trusting another third-party, e.g. an exchange or similar service that allows you to "cut connecting strings".