That's good to know. And in the premise of this thread it's relevant. However, since we're used to sentence case now, it still makes sense to keep it that way unless there's a compelling reason to switch.

On the other hand, street signs in Sweden, where I come from, are uppercase. I was completely used to that despite reading mostly sentence case in any other situation. However, since I moved to Denmark, where street signs are sentence case, I now feel like it takes slightly longer to parse signs when I go to Sweden. I guess if I'm correct, that's a case for quick acclimatation, as this happened over only a few years.