Demographics
Formerly a minority in the agrarian and early industrial societies, white-collar workers have become a majority in industrialized countries due to modernization and exportation of manufacturing jobs.
The blue collar and white collar descriptors as it pertains to work dress may no longer be an accurate descriptor as office attire has broadened beyond a white shirt and tie. Employees in office environments may wear a variety of colors, may dress business casual or wear casual clothes altogether. In addition work tasks have blurred. "White-collar" employees may perform "blue-collar" tasks (or vice versa). An example would be a restaurant manager who may wear more formal clothing yet still assist with cooking food or taking customers' orders or a construction worker who also performs desk work.
Read more about this topic: White-collar Worker