I have a hypothesis that this has a lot to do with age of transistion as well as the culture they benefitted from. In my experience Transwomen who transition in their teens and early 20s do seem to be less likely to act like this than those who transistion when they are 40+, although there are some young transwomen who will act like you described. It is hard to forget years of behaviour that was encouraged by the people around you and it only becomes harder the longer you wait, likewise early rejection of this behaviour means that it is easier to relearn.
When I transistioned I felt I had very little in common with the late transitioners who had benefitted from years of living as male, I still feel like that even as I approach that age myself. I was an early transitioner. I would have transitioned before my teens if I felt like I would have had support (Carlisle was (and still is) very socially conservative even if they did usually vote Labour, and this was the time of the trans/homophobic Section 28 and the newspapers talking about the loony left, and transitioning before your 20s was almost unheard of.). I had an abortive attempt to transition in my teens, with suggestions I would be thrown out of my parents house (They would be horrified to be reminded that they did that now) then became severely depressed ending my plans to go to university and transistion there, before finally succeeding shortly after I moved away from my parents when I became 21. I didn’t have decades of male privelege to fall back on and I didn’t want it, I doubt I would have survived long enough for me to get any benefit from it anyway. Attitudes were starting to change then by that point with Hayley Cropper being a regular on Coronation Street (the character doing in the UK what Caitlyn Jenner will hopefully achieve in the US) athough I felt the character didn’t really represent what I was experiencing.
I will admit that you have worked with more trans people than I have, and you may have seen things differently from what I saw from the ten or so people I regularly associated with.
