There's no benefit. It is better for illiterate people to be taught to read first. In my opinion, it is unreasonable for anyone to think that Bitcoin can be an investment for those who are illiterate. Meanwhile, even normal people have a big risk, especially illiterate people will have difficulty finding technical and fundamental analysis about Bitcoin. Their risk would be greater than someone who can read and I don't think it's a good option for them. I know bitcoin is a good technology but not all good things are accepted in all circles