No disrespect to actual TGIs is intended, at least not by me. On the other hand, let’s not stifle honest debate, even if it is pure blue-sky fantasy. The terms of the question in the OP suppose that I could, were it offered, change sex for a day. (Arguing over the terms “gender” and “sex” doesn’t help, of course. Once upon a time we knew pretty well what was meant by the “Sex” question on an application form and we knew what “changing sex” meant. Don’t blame me for the confusion.)
Now I’m assuming for the purpose of the answer that my entire anatomy is changing but the essential Malacandra personality doesn’t alter a flicker. Although I’m not sexually attracted to men, I’d be curious to experience the female end of heterosexual intercourse - a curiosity which cannot be satisfied merely by going out in my real live male body and finding a man to have sex with. But I’d be even more curious to find out what lesbian sex actually feels like. Obviously my knowledge of lesbian sex is highly limited. It’s perfectly possibly that the fantasy that so fascinates me does not exist in actuality. Still, presupposing that I could change sex just for the asking, with a guaranteed return ticket at my disposal, I’d be more than intrigued enough to find out.
Obviously this is so far removed from the actual motivations of those who truly wish to transition in the non-fantasy world as not to be remotely on the same page of human experience. I would be curious to experience sex as a woman, but I’m under no delusion that I actually am one. Those who wish for gender reassignment (see, there we go again. Now “gender” is what can be corrected by surgical intervention. Sorry, I can’t keep the terms straight) are not, I dare say while arguing from ignorance, motivated by anything so trivial as curiosity.
Perhaps the world is waiting for technology as advanced as in the sf writing of John Varley. I’ve not read “The Ophiuchi Hotline” but in his short-story collection “In the Hall of the Martian Kings” he depicted a future in which one could “Change” pretty much on a whim. There weren’t any specifics on how this worked exactly - maybe by cloning, as the individual seemed to acquire a completely new body; a woman was appreciably smaller and weaker than her male equivalent. But given the capability, I imagine there would be no real distinction between Changing just to have fun playing with the opposite-sex body for a while, or Changing to correct a perceived personality/physique mismatch. Indeed, given the ability to Change as often as desired, I suspect that gender identity would go the way of the dodo pretty quickly. No mismatch, no trauma, just be what you want to be and switch over when you want to walk the other side of the street for a change.
Short of “a technological solution so advanced that it defies rational explanation to our 21st-century comprehension” (the word “magic” would get the idea across more briefly), I don’t see it ever being an issue, though, and in the meantime, acting as if I’d changed sex, absent the actual different pudenda, ain’t going to hit the spot, at least not for me.
All clear and free of offence to everyone?
I hope I did not say anything offensive. 