To begin with, I didn't need to. My body has been undergoing a change that is rendering my entire wardrobe unwearable bit by bit. Though I'd argue that people with muscular thighs don't really need a true straight fit all the time, and can still get away with tapers below the knee. For example, my low straights--which have a pretty legit taper, fit great. And my straight fits still are baggy below the knee and look good only with boots.