Why the confused headline and opening paragraph
I know the writer probably didn't write the headline, but both their opening paragraph and the headline produced from it are written as if this is completely crazy as a feature, while the rest of their article provides a completely logical reason for its inclusion and it's not the only one. It would also work for those who can't see the terminal due to a disability and, given the language support, could help for those traveling to a location in which a language they don't speak is spoken. Of course, in the latter case, they could probably look at a screen and see the price, but not necessarily instructions or other text. I'm not surprised that many PoS systems have left it out, but seeing it put in this one isn't very surprising to me.