We have discussed it as a family quite a bit -as we really thought we had done alot of teaching to get to this point where he was allowed to be independent. But - after the attacker/peeper fell from the ceiling and attacked the woman he landed on and then went outside the bathroom to attack the older man she was with - we clearly have a whole new set of things to consider that even we don't yet know how to protect ourselves from and would have to figure it out in the moment. Until we can come up with our own strategy for how we would handle those moments beyond adrenaline and life experiences just doing what ever we do - we dont have a good strategy to teach our son or daughter. The old stereotypical concerns seem to be less and less likely (schools are pretty much on lockdown now when it comes to adults being in there - becoming a lower frequency occurrence for the littler kids to have encounters with strangers - the risk there is almost solely those that were trusted ) and the avoid strangers/look away/walk out if it feels or looks weird etc techniques are not going to be sufficient for the situations making the news today.
He wont be going into the woman's room forever - and in places when we are comfortable that the nut-job level is more traditional and he has the skills to cope and one of us can at least wait outside (vs trek into the woman's room with our daughter or doesn't need to use the restroom ourselves) - we will work to keep him practicing those life skills. Otherwise - he will continue using his own stall in the women's bathroom where I can be in closer proximity. As he gains more experience and we are comfortable that he could protect himself in some way (and even conceptually understand the level of crazy that is possible) - he will regain that independence.
At this point (8 years old) - I am not worried about his 'bathroom skills' anymore - he can cope with just about any type of toilet or urinal, automated sink/soap/faucet/papertowels, broken or unbroken or stuck lock, toilet paper emergencies, line or waiting order etc that there is...
We will continue - as a family - talking about these types of situations to make sure that everyone can be prepared for the unexpected. Hopefully in a year - we will feel that we have raised our readiness bar to our new realities and can go back to what was once 'normal' - our DS using the Mens bathroom!
(My 4 yo daughter is actually a whole different problem - much to her dismay - she is VERY VERY short - I think it will be several years before she can reach sinks/soap/paper towels to go alone - a problem we didnt have with DS who was the size of an average 11 year old at 7 years of age! So it could be longer that she is using the mens room if I am not with her)
Then take him in the stall with you because that is the only way to protect him. What if someone falls for the ceiling into the stall he is in by himself. Then he is locked in there with the person who fell from the ceiling. Clearly the only way to protect him is to keep him in the stall with you.