This is a bummer for the young lady...Yes, very good point.
I have noticed considerably more female assistant coaches this year. Perhaps just a coincidence, but I don't think so.
This last weekend a team at our tournament had a girl "become a woman" during the tournament. Her parents weren't at the game. The all-male coaching staff went like this:
AC1 -- deer in headlights
AC2 -- went to get the first aid kit
HC -- texted the mom and said "get the F#@* down here immediately"
The girl didn't play any more that day.
We always had a first aid kit....that INCLUDED....things beyond first aid...including lady needs. When we didn't have a female assistant my DD would tell team there were emergency supplies in coaches bucket with first aid kit. We were fortunate to always have a mom at games so no issues there....did have 2x where a player had an emergecny grabbed supplies and took off to bathroom in the middle of the game. Players handled it well coaches handled it well discreetly.