I don't think you're coming off as a douche at all. I was a very tomboyish girl. I kept my hair short, wore boys clothes and while my sister had Barbie (with Malibu Dream House) I had G.I. Joe (with Kung Fu grip). This was in the late 1960s/early 1970s and my parents were definitely not liberal (they just ignored it). I turned out gay, not trans. I wonder if with different parents growing up today where my childhood playing would have lead to. I agree, 10 is too young for a child to make up their mind about this.
This is a valid concern.
There are a lot of questions about this, and I find it unfortunate that they are not discussed. I'm tight with some trans-advocacy groups, and I've seen a lot of them simply react to these questions with accusations of bigotry.
Whether a child at 10 can make such a decision, however, is less important than another consideration. Most places I know of, at 10, a child does not have the right to refuse medical treatment. If the parents decide that the kid gets a needle stuck in them, then a needle gets stuck in them, period.
So it's really the choice of the parents, and I wonder if at times the parents make bad decisions. Parents make bad decisions for their children all the time. Usually it can be corrected. Usually, this only requires decades of intensive therapy to correct.
It does not, however, cause lifetime sterility, except in extreme cases. That's pretty serious. When various groups of people were sterilized at the hands of the government, people get very offended, and I think rightly so. I think that one has to have an extremely good reason indeed to sterilize children, and I don't think that sufficient reasons have been presented.
I've also seen teevee programs featuring parents of transgender children, and they always say things like "Crissy always wanted to play with dolls instead of trucks." This does not strike me as relevant in any way. I played with a lot of dolls as a kid, and I dressed up in dresses, and sometimes I fervently wished I had been born female. I grew up to be about as male as it is possible to get without magical influence, and I wouldn't have it any other way.
Of course, parents of transgendered kids get very agitated and abusive when this is pointed out and insist that they are certain, but there is a curious lack of explanation.
The very first of what was then called a sex-change operation was performed in my lifetime. We still know hardly anything about mental disorders, even seemingly simple ones like depression. There are disorders that psychiatrists aren't even supposed to diagnose at age 18, because there is a perception that people develop throughout adolescence.
Yet, at the same time, we are not only asked to believe that gender dysphoria is so well understood that it is not only acceptable to administer drugs to pre-pubescents that will prevent them from developing a functioning reproductive system, but that our understanding is
so incredibly perfect that withholding agreement that it should be done on a regular basis can only be a sign of transphobic bigotry.
Color me skeptical.