In many cultures, squatting over a hole in the ground is common. So, standing on a toilet seems reasonable.
But let's not get off subject here. My Sweetie does not want to be accepted as CD in public, she wants to be assumed as a woman. Not all, but most CD's want to pass as a woman. As a genetic woman, I'm sure I've been oblivious to the true nature of many women I've encountered all my life, because they behave as women.
As mentioned before, this was a CD and spouse event. I knew the gals in the ladies room were men dressed as women. I've only met these people as women, so it's easy to accept them as women. Once even helped a girl who had the back of her skirt tucked into her pantyhose!
Though I barely understand the desire for a man to present as female, it's more than the clothing. Affecting the mannerisms of femineity completes the experience.
Except for Mrs. Oliphant's ex (must have made a mess, how does a woman aim?) woman do not pee in public toilets standing up. It spoils the whole illusion. That person, that night, announced that he is a man peeing in the woman's washroom. It's just wrong.
Eileen