To be honest not a big fan of crap on the bathroom walls or child models
. My take is let kids be kids (trans or not) and if they want to sashay down the runway when they get older, that is their choice. In the meantime, let them have fun. However I feel the same way about parents who live vicariously through their children playing hockey, dancing or whatnot. Yes, if the child has a talent, foster it, but don't make it a cult following.
Change rooms . . . hmm . . . good question and one again where I differ from many in my community. The bathroom thing is a hill I will die on, after all I am answering nature's call in the privacy of a shut stall as are the other ladies around me. Change rooms . . . here is my personal take:
I am cognizant that I am physiologically male and that my presence in a women's change room would be awkward to say the least (for both the women around me and myself). Now, I have been in coed in saunas in Europe but they (Europeans) have a different outlook on things and even so, the change rooms are still separate. Now, if I had gone the distance (gender reassignment surgery) or even an orchiectomy (essentially a removal of the berries from the twig and berries dyad), then I would be more inclined to think the ladies vice the gents change room would be more appropriate. At work, I still work out and an accord was reached in that a section of the male change room has been curtained off (their choice . . . not mine) to afford me privacy. Oddly enough the men were more put out by my presence then the women so it almost ended with me in the women's change room. I chose the men's because I was just not comfortable enough with the prospect.
Will we get to the point where men and women use communal showers . . . I think as a species it is possible but we (both genders) will have to mature a bit more before we cross that bridge.