I agree with the responses others have given to this point. I don't think there is a clear cut state of being that constitutes transitioned. It is in the eye of the beholder and the beholder is the person who changed themselves to reach a more comfortable condition. I think we need to look at the purpose of the transition and not the visual characteristics of the transitioned person. If the purpose of the transition is to alleviate some of the many kinds of gender dysphoria then you have transitioned when that goal has been achieved.
Hormones and surgery may be necessary for some because of the nature of their dysphoria, otherwise, I believe, it is just inducing a state that is not natural for you so you can fit into a specific population. Nine years ago I considered transitioning (in the stereotypical sense) but ended up rejecting it because the nature of my dysphoria was to switch back and forth in more of a gender fluid way. I ended up deciding that I would spend a pile of money and potentially endanger my life to create more or less the reverse of what I was and am. Being fluid allowed me to manage the dysphoria that would sometimes develop when in female-like expression and a desire to switch back to male-like and visa-versa. So classic transitioning, for me, would simply flip the equation around. My therapist agreed. It is rare that I have looked back and wish I had gone the other way. So, for me, I have transitioned because experiencing severe dysphoria is a very rare event and easily mitigated. We are all different so I say seek that condition where you are comfortable and ignore the stereotypes.
