There can of course be a delayed effect and people who we describe as late-onset have typically tried everything to escape a draw that will not rest. But there are others whose dysphoria is not as potent who manage somehow to quell their desires and continue to present male. Masculine and feminine behavior and qualities can of course reside in a person without an impetus for a change but in others it becomes all but impossible to resist. How that dividing line is defined and how successful the ability of some to resist a transition is a very difficult thing to predict.
Here is where other factors come into play such as beliefs, family support and financials to help become additional variables in something so utterly complex. I think that there is also a period where we get lost in trying to root out the difference between what is a forced socialization and the real person lying underneath.
That superposition often takes many years to sort out and is why it delays many people’s push towards a transition. The image versus the real become intertwined in a way that they cannot always be easily separated.