Okay, I'm going to be very blunt here and please remember that this is just MY opinion and not a Tink's law of any sort.
True, many people don't care and claim to be their "own woman" or "man" and that is perfectly fine as long as these same people don't complain when society doesn't accept "their version of womanhood or manhood".
Now I've met so many people during my life. Some women like
Janet from work try extremely hard to fit the stereotypes of what being a woman is. She is currently living fulltime, wearing female attire at all times, going to therapy, taking hormones and speech lessons, etc, etc. Basically she is in her real life test living and working as a woman 24/7/365, but she doesn't pass and hence she has been encountering some problems with some people there.
Naturally, people treat her "like" a woman, call her "Janet" and use the correct pronouns when she is around; however, behind her back, these same people talk hell about her, complain about her using the ladie's room, switch back to male pronouns, etc, etc, etc. It is really sickening, if you ask me.
My point here is: my co-workers are treating her as "Janet" because there is a state law that forces them to do so but not because they actually perceive her as a woman. Personally I wouldn't like that either. I want to be treated as a female because I am female not because of any law or out of pity.
The other group of people I've met are those who claim they are "their own" woman (MTF) or man (FTM); they call themselves "transsexual" but do not want to do absolutely anything to conform with society's stereotypes (in the case of "MTF's" they literally don't give a flying fly about hair removal, improving voice, hormones, etc). However (and this is what boils my blood

) they are the first ones to complain, cry, and moan when society doesn't see them as the women or men they claim they are.
So my point here is: one doesn't have to do anything to adhere to society's gender stereotypes, BUT if we are looking for SOCIETY'S ACCEPTANCE as men or women, then we need to conform to those stereotypes whether we like them or not.
Bottom line:
QuoteCan one live as their target gender without passing?
Yes. Many people do and have done it since only God knows how long. I think that it is possible to LIVE as men, women, or as whatever we please; however, the question remains: Are we being PERCEIVED as the gender we are living? Passing, is IMO, extremely important to be perceived and accepted as our target gender.
tink