Oh. I thought about written language, not about localization (as it comes up when being used in graphical user interfaces). As a non-native speaker in science, we always write out units (3 km or 3 miles), we write out dates clearly (July 2nd or 2018-07-02), the same with units (USD 3 or 3 EUR). As a non-application-writer, I don't see the point. As a programmer, I do, of course.
