If indeed the country has been legalized bitcoin, it's good we aimed the all efforts made only focused on the things that are legal. Anyhow I don't think bitcoin is worth using for the things that smelled illegal. To me personally in the country where I live, although bitcoin is still said not legal completely.. but I personally keep doing things more positively and avoiding things that smelled negatively, criminalized, or illegal activities like for example made into a dark business.
In order to buy illegal things it is better to use Fiat. Actually it is a fake that bitcoin is an anonymous currency. There is always the possibility to track the user. These fakes are spreading bankers in order to stop the spread of bitcoin. I'm sorry that there are people who believe in it.