AngryAttackKittens and GoldenWonderwall
I honestly don't know. On another thread a poster quoted a study that showed that trans men, when taking testosterone, actually exhibited male levels and patterns of crime, so they appeared to lose female socialisation. Obviously, these were trans men that committed crime, not all trans men, and I suppose it's possible that they had also committed crimes as females too. I'm not convinced that, certainly within the prison system, that trans men don't pose a physical threat to female prisoners. Again, I know it's relative and individual levels of strength and fitness etc may balance some situations out.
You can't always identify trans men or women. I don't think it's that clear cut.
I honestly can't imagine relating to a female bodied person with a full beard, male name, wearing men's clothes as a woman. And therefore I wouldn't feel comfortable changing or showering or sleeping in the same room as them.