Simple,They have braille on the buttons so that the handicapped will not be required to disclose banking information to there personal care aids when retrieving cash from said ATM,Alot of dishonest ppl out there.
I got it frankn and I thought it was a damn good observation. I thought about it and laughed first time around. publicly traded company called Diebold (DBD) makes a big share of the ATMs ( started off as a safe manufacturer). Also makes some of the electronic voting machines that everyone hates.