I think this is the problem of generalising...
Some MtFs are very lucky in that they have very suppressed androgens or forms of AIS that then makes a later transition say in their late 20 30's still very successful.... or they get medical intervention in their teen which is even better....
And then there are the blokes built like brick-sh#t-houses that life as male a life as they can till there 40's....who will never get the kinda jessica-rabbit physicality easily, and beautiful facial features, that deep down they might desperately crave...
Ditto if you be an uber small, tiny petite foot/handed, uber hip-to-waist ratio pretty faced FtM, rather than an uber 6ft plus, balding stallion muscle clad broad shouldered alpha male type...
Then a convincing Bruce Willis type you're unlikely to ever be!
(And the cruel irony of all this physicality against you malarkey is also hard to take)
As an aside while I was in Scottsdale recently I did notice that an awful lot of chaps I saw in the good doctors reception over the month or so I was there (and a lot of em to boot) who were seeking out 'top' work were lets say in the main somewhat height challenged.... one chap tiny in fact....
And men being the jocks they are - when out as a boyz pack on the town - do really work on the hierarchical king of the castle mentality, where he who's toughest, hardest, bigger better wins... so lets say if you take up Rugby, best to keep outta the scrum unless you want to be broken....
If a skinny, pretty and aesthete femme boy-toy type you be.... in which case heading up a Japanese boy band might be a better choice of divertissemént?