Good that you brought attention to that, because it adds some depth to the discussion. This goes beyond someone just deciding that he(she) is a woman (man). Or unicorn (so Federberg does not feel excluded
).
Thing is that in this article it is also stated that those situations occur a few times in one thousand cases. Another source I found has one case at each
448 births. And not necessarily all those cases are transgender (there are the "super-males", for example).
The reason I bring this up is obvious, we cannot forget we are not talking about the general rule. So, on one hand, I am happy that society and the state recognizes the issue, on the other we cannot simply pretend that is not the case. To begin with, this explains why some people never met a (genuine) trans-person, which by its turn explains the "oddness" and the lack of familiarity with their issues, their looks or whatever. It is not that all these people are transphobic. Human beings struggle to deal with what they are not used too.
And, obviously, once you are aware of that stat, you begin to wonder if everyone declaring him/herself as trans out there is being honest, or simply know what they are talking about. Obviously someone with lack of information can confuse it with homosexuality. And, and that I guess is the point
@britbox is trying to make, if you are not being honest about
that, well... it is not exactly a good start. And, of course, there is always the retarded parent saying that his/her/their three year kid decided that she is a boy (girl). Or baby unicorn.