system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are bathrooms all gender specific, rather than having one restroom with all stalls, for both genders?
gpt
A long time ago there used to be "powder rooms" that ladies can use both for the toilet and to adjust their clothing or touch up their makeup. Since doing either in public were seen as impolite these powder rooms were explicitly private and for ladies only.