It will not be advisable to make transactions in bitcoin within a country where cryptocurrency transactions are illegal by the law. But Imagine this scenario that someone has been using their bitcoins for transaction secretly successfully, and then one day decides to use the bitcoin that they have to make payment for something like a property to the owner of the property, If there is this kind of problem for instance where the owner of the property decides to claim that they did not receive any money in bitcoin, and the case is taken to a law court, what do you think the outcome of the case will be?
If proofs of payment are provided but in cryptocurrency, do you think the court will consider it even though transactions are tagged illegal with it? or will the case be thrown out and the owner of the property with the false claim of not receiving the money be allowed to go freely?
If bitcoin is not legal in your country then I don't see any need to trade bitcoin from your country. In such a situation, if you want to make a transaction, you can get caught in a lawsuit if the person sues you for endangerment because Bitcoin is illegal in your country. So you can't even get sued if you transact with bitcoin from a country where bitcoin is illegal. So you will be considered fully accused in the case. By converting bitcoin to local currency through p2p to stay hassle free, you will give your local money to your property owner and here you can keep the statement so that the property owner can't put you in any danger. Bitcoin is illegal in my country I never transact anything through bitcoin from my country I convert bitcoin to local currency through p2p from my country and transact with that local currency so far I have no problems.