Does Leonardo DiCaprio having 19 year old girlfriends count? That technically is a "teenager".
Sarcasm aside, as a referenced earlier, what makes this subject so tricky is the fact that, in essence, we could have two people who are in the same situation and same mindset, but get perceived differently based on how "passable" they are.
Admittedly, I don't have a good answer to how we solve that.
At the end of the day
"
Do you want penises in the womens facility, or breasts in the mens facility? Pick your poison" is the conundrum.
The people who would be outraged about male downstairs parts in the womens facility, would be equally outraged by the more convincing looking transwomen exposing the upstairs parts in mens facility.
People gotta change somewhere.
With the pass-ability aspect, people who look like Blaire White and Buck Angel (and I'd advise that people don't google image search those names for more pics unless you want an eyeful of something you weren't planning on seeing)
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Aren't going to get any flack using the the bathroom of their preference (Blaire on the left was born male, Buck was born female...they called this picture "straight: with extra steps")
In fact, they'd probably get a lot of flack for using the other facility that actually matches their birth sex.
At the same time, there are others who don't "pass" as well, despite the fact that they're in the same mindset and psychological situation as these two.
And that brings up another caveat, which is that someone's intentions are judged based on how well the hormones worked to help them achieve the desired "look".
Some will say that Blaire is sincere about it because the hormones were obviously pretty successful in getting the desired look, but will assume that someone is "faking it to see naked girls" if they happen to still have the 5 o'clock shadow and broad shoulders and still look like a man.
The tough part is that for the people who want to abuse it, they are going to kinda look like the person who the hormones weren't all that successful for.
Again, I don't have a great answer for this situation lol.
(assuming others don't either, otherwise we wouldn't be in national turmoil over it)