OP is the thread about Bitcoin or it is about Cryptocurrency in general because if you are discussing about crypto, there are shitcoins that should not be mentioned when talking about National affairs. Bitcoin is the only digital currency that can be trusted to the point of even involving it in business transactions if not you are buying a free ticket to losing your business profits and even capital.
But crypto on the other hand especially bitcoin has limited supply so it cant be printed endlessly like treditional currency. People also like stable coins like usdt and usdc helps Nigerian protect their saving. Bitcoin is also best because it keeps increasing its value over long time. Thats why many people use Bitcoin for long term saving. With crypto Nigerian can protect their money from inflation and maintain its value, even make profit if make long term investment is made in Bitcoin.
I can only agree with you on the ground that Bitcoin increases it's value over a long period of time but on the aspect of Nigerians protecting their money through Cryptocurrency, I strongly disagree with that. Cryptocurrency is a general term for coins in the digital space even covering Shitcoins and Altcoins. I will never advise a Nigerian to save his or her money in any digital currency apart from Bitcoin because these coins are not stable and you are booking a one a way ticket to loss.