My first reaction to this question was: Do you even have to ask? Certainly I would have liked to transition earlier - in the womb, when I was 5, when I was 10, whenever. But the word "transsexual" wasn't invented until I was 23 years old. It was a different time and transitioning wasn't even a concept.
And if I transitioned earlier I wouldn't have my daughter... When I started hormones I thought: Wow, I wish I'd done this 40 years ago. But then I remembered my 36 year-old daughter and revised that to 35 years ago.

If I transitioned earlier, I would be a different person. I kind of like who I am now.

And the past is past. Live for the present to make a better future.
- Kate