Deciding what to wear on the job would seem to be simply a choice of comfort, convenience, and safety. However, work clothes also:

Workforce clothing changed as work roles evolved. For example, as more women entered the industrial workforce, clothing was designed to meet their needs. During the 1950s, male office workers were expected to wear a white shirt and tie. By the 1980s, as workplaces became less formal, this style was less expected.

Traditionally, uniforms denoted authority and heroic professions, but today they are as numerous as the fast-food chains and supermarkets where they are worn.