This reminds me of the time an EX-gf said: “Do you know what your problem is?” To which I, of course, said: “No.” She said: “You might want to sit down and get comfortable…” : )
Don’t overthink this, deli – oh, wait – you already did. In most schools, the bathrooms are adjacent to each other – you know, plumbing and sewer considerations, things like that??? Locker rooms are a different animal than general population bathrooms. And shame on any girl, team, coaching staff or trainer that isn’t bright enough to plan for a pretty common need. Your logic is absurd, but then, you appear to have an agenda. Be well, and don’t forget to always “Carry a Tampon for a Friend”. There you go – your problem is solved.
That is beyond the realm of logic, but you just be you. No purpose is served by putting “Girls Only” products in a “Boys Only” space. You need help with your reasoning, deli…
It would appear that your ’70s were verrrry different than the ’70s that I remember.