Under what conditions, if any, do you think demographic characteristics are legitimate reasons for not hiring a person or for firing an employee?

People have been refused employment or fired from their jobs, because of perceived problems with their height, weight, odor, skin color, clothing, hair, age, religion, race, or general attractiveness or unattractiveness. Under what conditions, if any, do you think such characteristics are legitimate reasons for not hiring a person or for firing an employee? If you believe there are no justifiable reasons for not hiring a person or for firing an employee based on perceived problems, then defend that position. Thoroughly research and discuss this topic. This exercise will require outside research. Please use a minimum of six (6) sources. One source can be your course textbook. Be sure and cite all six (6) sources in your References list at the end of your Applications Exercise assignment.