Greyblades, I need to ask you, honestly here, what is your personal experience with trans people and with teenagers?
I've talked with some trans teenagers (before you ask, they were +18). Some online, some offline (one of whom I would hope people here recognize). They lived under parents who were very unsupportive. I'm only aware of the parent's relationships with their kids via the kids themselves so I'm obviously aware of biases they would have. But even independent of their kid's identity, they were not exactly what anyone would consider "great" parents. Even in these circumstances where haircuts were essentially mandated of a certain length and clothing of a certain style, while they certainly would feel "odd" compared to the average, they were fairly close to being seen as their preferred gender.
Yes, absolutely, certain features are decided by a genetic roll of the dice. This can have variable levels of impact on appearance, especially with testosterone inducing body and facial hair growth. Trans people who are trying to present as their preferred gender, even if not on HRT, can put a lot of time and money into their appearance. How well they "pass" is subjective, and even then, none of them are going to be seen as fashion models at this point. But a lot of trans people have stories where they fall into what could jokingly be considered "Schrödinger's gender".
people who by the fact of thier age are hyperfixated on the bodies of the opposite sex.
Maybe the American school system is such a uniquely American experience that certain details are different for people outside of it. Alternatively, and maybe I should have realized this, mine was exceptionally good. Lots of people are very overweight, lots of people shows signs of being very malnourished in the past or present. Many people have other developmental issues. Most people in general don't look like they just walked off of a movie set. I went to highschool with a lot of these people. A lot of these people were friends with each other.
It is possible I and my friends just won the magic lottery ticket, or school has radically changed since I've been there, but a lot of people I know, as well as myself, felt much more bullied and harassed before high school than during it. There were defiantly highschool fights, but most of it was sparked by dating/relationship drama, or attempts to be a class clown while physically abusing someone randomly. This was also at a time when "that's gay" or the f-slur was used as an insult as well, even in front of teachers.
Lots of teenage guys would make crude and gross comments about females, girls would spread gossip about which ones they found attractive, but it was mostly in private with their close circle. A lot of people were not what most would consider traditionally attractive but even then, most of the time this was jokingly pointed out by friends as almost a bit of endearment than an insult. Again, it is more possible that my experiences were exceptional, and that my experiences with teenagers since then were also exceptional.