Men’s apparel still bears many resemblances to historical military uniforms. Over thousands of years of battle, men developed the practice of fastening and unfastening buttons with their left hands. The tradition of button placement persists and has become a fashion standard, albeit it is not required. This represents stability and a link to the past, as well as a representation of style and aesthetics in contemporary fashion. This is why the buttons on men’s and women’s shirts are always on different sides.