why do trans people need to transition instead of just expressing themselves however they want as their actual gender? this implies that your gender has an impact on who you are, what you can do, and how you're meant to feel, or that you aren't able to express yourself a certain way if you aren't a man/woman.  what exactly necessitates transitioning? what are they unable to do as their current gender that they want to do? what do they gain by transitioning?
Canada