There is a german speaking train subreddit where like half of the train drivers are femboys (or it is just the same two people posting so often that my perception is skewed), so I would guess that it is fine. Gender non conforming people and trains just go well together.
Alles gute zum verlassen des Schrankes. Auf dass alle deine Bekannten dich in deiner wahren Identität unterstützen.