I am not a doctor, an expert in gender identification, or a parent of a transgender. I can honestly say that I really only know a couple of people in my lifetime that fit in this category. Do I foresee the idea that this thread introduces being a big issue? No. Do is see it causing trouble inthe future? Yes. The problem is that even though it is classified as a diagnosable condition it is not the type of thing that is able to be determined by a blood test or lab sample. It comes down to a feeling. And for every person who is certain that they are the opposite sex than their biology, there are probably a bunch more who "feel" like that may be but just,don't know. So if a team is playing another team with someone who may be of the opposite gender the only response needed by that person or their coach to an inquiry is that they say that the player identifies as a girl. They don't have to be in any sort of transition program, don't have to look like a girl, or anything else traditionally associated with gender identity. Are you going to be the opposing coach who is now labeled as a bigot, homophobe, or flat earther (something that came up earlier in this thread)? This s the issue that school administrators, the military, businesses etc are dealing with already . Does that boy want to use the girls bathroom because they are legitimately feeling like they are female or are they just being a pervert? Will people take advantage of the confusion for,their own gain? Most,definitely. Are people running scared with fears of offending someone or being sued by not allowing it to happen? Yes. Do I know the answer? No. ( Great philosophical discussion though, it's too bad some on here get emotional and just insult and name call simply because they have a difference of,opinion)