Going back to the locker room story, I went to the bathrooms today in a shopping centre and to my surprise saw a 12 year old boy among the stalls!
12 is waaaaaay to be old to wait with Mum in the bathroom. I draw the line at 6 or 7 maybe. Didn't wait around for the mother, but if I had seen her I would have estimated her. Must have been a SS to think her 12 year old son could come with her to the ladies room!
I saw something similar myself a few years ago. I was traveling across state and stopped at a rest area. I went into the ladies room and there was boy in there about 10 or 11 years old standing by the hand dryers. The poor kid looked very uncomfortable and was looking at the ground.
I went into the furthest stall I could find because I was almost in pain at that point and waiting was not an option. A few seconds later I hear a woman's voice come from another stall closer to the door. "Johnny, are you still out there?" The kid answered her "Yeah." The woman said something like "Well, don't move. I am going to be in here a while."
I came out a couple of minutes later. The woman was still occupied in the stall and the kid was standing in the same place. The poor kid's face was bright red and he seemed to want to melt into the ground.
I tend to think it was a mom and son traveling together without any adult males. She most likely wanted to keep the kid safe while she used the bathroom. But, that kid will have flashbacks and nightmares about that trip for many years if that happened more than once on their journey.