I don't know how this comparison is even possible but with a fact that we all know about China having a much larger population than Nigeria, the odds of china having more traders than Nigeria will also certainly stand in favor of China becauseof the huge population difference.
Regulation might seem to be a factor for both countries but still the technology and infrastructure will favor China in this comparison.
China has more population than Nigeria, so it makes sense that China has more traders. After all, China is one of the leading countries in
terms of technology, as evidenced by many coins and exchanges whose creators are Chinese. So I'm not surprised that trading crypto is
quite popular in China compared to Nigeria, unfortunately the Chinese and Nigerian governments don't support cryptocurrencies.
Even though a country as big as China if the government can support crypto, I believe the development of crypto will be more rapid.
Because it can convince other Asian countries to legalize crypto as well.