Showers? Secure dressing rooms?
I don't know about these places. Places we go to get ready include a teachers' lounge where people are coming in and out all the time, a band room, the end of the bench, coach's offices and training rooms. A few places have good places to change but often that is only if it is a boy's game.
I work varsity only at generally smaller schools. My partner and I come dressed but with our regular winter outerwear on. Can't shower if there is no shower.
Do I care? Not really. I am there to work the game to help the players.
I like a lot that your members need to confirm games. Our regulations require it but unless there is an issue, I don't know if all the officials do it. I do find that younger people don't like rules as much as guys my age (late 50's) so our association tries to not be overburdensome.