Well, that kind of tongue-in-cheek solution can work. Same as Paradise Lofts (nice game) where the MC always wears the same clothes, and when you click on the wardrobe, it only declines different ways to say "white shirt, suspenders and brown pants".
This works as a joke, but if you try to simulate a realistic(ish) universe, this kind of cop-out isn't enough. Same goes for the hair. While most of us don't change hairdo every freaking day, there's no way a girl will have the same hair when she studies, does yoga, have sex with her brother, etc. I've been playing Sisterly Lust recently, and one of the sister (Bella) always has her hair in a bun even when the situation would request she doesn't.
That's why Amanda letting her hair go freely while in seduction mode was a pleasant surprise