All country have different regulator and here in our country we have some fees to run a business in crypto but that's fee is for the permit only like we need to pay that because we need that in a business so we not pay tax here in our country,i think also if a country regulate bitcoin or digital currency the sense of it will become nothing because this is already good by that so if they regulate this with tax that's not good for users,traders and investors still we have different opinion about this topic i only say what i want