This is a good idea if developers will make a way for blind people to at least use bitcoin. But we all know that this seems impossible because we are using a device where our eyes are really one of the primary needs to see and understand this technology. It is not something that is written on a piece of paper and transform it to tactile writing for them to be able to read or know what was written.
As far as I know, adapting current wallet software for blind people will be quite a challenging task. Since people with such a disability are the minority, developers don't care more or less in adding accessibility features to Bitcoin. It's a shame since it reduces Bitcoin's level of adoption in the mainstream world. Only people that are able to see can use Bitcoin for day-to-day transactions. If someone blind is still interested in Bitcoin, he/she would need to put someone in-charge of his/her funds. This brings back the middleman (trust), but it's the only way blind people will be able to access Bitcoin.
At least, there's a version of the Bitcoin whitepaper written in Braille. Blind people can know what Bitcoin is all about, but they cannot use it directly for their own benefit. If Bitcoin's popularity continues to increase, it's hoped that developers take into consideration people with disabilities in order to make the pioneer cryptocurrency more decentralized than ever. Everything will depend on people themselves. If people don't pressure developers to build a tool that would facilitate Bitcoin transactions among blind people, everything will remain the same. The community's voice needs to be heard in order to make Bitcoin the best cryptocurrency in the world. Just my thoughts
