It's legality status of Bitcoin and its use cases in a nation that can be legal, ilegal or alegal.
The magic fact is with Bitcoin blockchain and a non-custodial wallet as well as Tor connection, you can use your bitcoins without engagement and need of approval from any centralized entity. Government even don't know what you do too but surely if Bitcoin and a use case are illegal in your nation, you must learn more, become more knowledgeable about Bitcoin blockchain, wallets, and how to practice with UTXOs, in order to make sure that your practice will not lead you to big legal troubles.
This is about regulations for businesses and entrepreneurs. Yes I know that in countries that prohibit Bitcoin use, they (Bitcoin users) can still receive and send Bitcoin. However for businesses and companies, they will be monitored by the government. If the local government does not allow the use of Bitcoin as legal tender for their business, they must comply. Violations can result in sanctions or even bankruptcy, as the government is ruthless.
The bottom line is regulation.