As per Noor Warsi's message starts from Adolescent stage or Puberty stage. Due to the development of human body and the sexual emotions starts in the age of 14 +. Hence we can taken account of Co-education merits and demerits are only at the stage. Other wise, as per our External Anatomy Girls need more dress than Boys. And also Girls having more health problems than Boys. I concluded these two points like anatomy and healthy conditions, Girls need autonomy and hidden places. Boys No needed such conditions. For example, a family having Opposite sex Twins. They must discuss each other in a healthy way of meaningful manner. Like a responsiveness needed for all co-ed schools. Only few fellows to do emotions can spoil the whole institution names. Thanks for discussion. Tamil Nadu State, India.