Zelda changed her skin color and eye color via magic, so her changing her clothes and even her sex via magic just makes sense if you want to assume she changed her sex too. Honestly, I was always bugged by the "her body's too masculine!" shit since many athletic women (Olympians especially) have that same body type. Treating Sheik as a different person entirely rustles the fuck out of my Jimmies too.

Playing Zelda/Sheik's gender as female regardless of her physical sex changing sounds interesting, nonny, especially since you seem like you'd go about it in a way that's respectful to trans* people.

So you have my axe!