I would love this!
I hate going into a bathroom and needing to softly push/pull on each door lightly enough to avoid letting someone who may be sitting on the other side know I’m checking whether the stall is occupied.
Edit: I know many stalls have the green/red slider, but those are often hard to read, and I can immediately see which stalls are empty with the glass ones, without needing to walk up close enough to read the dial.
Yes, but the glass is immediately noticable from anywhere in the bathroom. I don’t have to walk up to each door to see the latch position.