Here is a hard fact for you. According to this (old) article, 66% of sub-Saharan Africans don't have a bank account.
https://www.itnewsafrica.com/2018/12/66-percent-of-sub-saharan-africans-are-listed-as-unbanked-world-bank/
The numbers aren't important. If it's 60, 50, 40% it doesn't really matter.

Some people are forced to find alternatives to traditional banking systems. Others simply don't like it for various reasons that I am not going to go into right now. While it is true that you would be limiting your sales only to users who accept crypto payments, you are wrong in calling those who prefer Bitcoin 'idiots'. Take a look at the name of the forum in the top left corner.