The bathroom issue is easy. Simply remove the boy and girl pictures and words from the sign and put an ambiguous picture of their, uh, equipment.
. Then it's not a gender bathroom, it's a penor bathroom.
Can you imagine the uproar if some 18 year old boy walked into the girls showers in PE while your daughter was in there, claiming today he was "gender fluid" and today identified as a girl?
This isn't about gender it's about the equipment. Problem solved?
They made a mistake selectively enforcing the rules and should have the courage to admit that this was a mistake, and enforce them equally for all....