Let’s say you are a man, and have your daughter with you.
What do you do when the kid has to use the toilet???
In the old days I'd take my (very young) daughter to the men's restroom as back then the chances of running into a queer were about as slim as meeting one in the shower while in the U. S. Army.
Most unfortunately times have changed drastically and queers run unfettered throughout our polite society.