Right. You just happened to get me with red wine and I'm feeling passionate, so here goes!
It's my opinion that every single person here has thought about their life, what they feel, what they think,
how they think, every moment of their life without end. GID is just that. For me anyway, every single thing I do and say is shaped and targeted towards who I actually am, rather than who I appear to be.
Now, you say perhaps that our opinion is unrealistic. I can only speak for me, but in my experience, just about every single person who has GID has the same life, same story, same feelings, same background, just individuals vary a little bit.
Referring to my point that I have lived my entire life, as long as I have living memory, under no circumstances have I any false ideals or notions about 'womanhood'. I am me. You are you. Simple as. It's the person that decides how they interact, not the gender of that person.
If I asked you what to expect if you moved to some distant suburb of inner china, you more than likely wouldnt have a bloody clue. You have never experienced it. Not completly. You may have seen it on tv, or have met someone who was there.
That is not a perfect metaphor for GID as feeling this way gives you natural inclinations that aren't learned, but felt. BUT, no one knows exactly what anything is until they have been there. Worn the proverbial t-shirt.
So to summarise and I did say at the beginning I've had red wine so I'm feeling passionate

No, nobody knows exactly what something is like unless they have been in that exact situation, BUT, when your entire life is shaped by something and everything you think about and feel is because of that thing, you begin to think very realistically about your options and how things will actually change should you transition.
In life there are good people and bad people. Let's keep this forum full of good:)