Manufacturing’s shrinking presence undoubtedly helps explain the decline in craftsmanship, if only because many of the nation’s assembly line workers were skilled in craft work, if not on the job then in their spare time. In a late 1990s study of blue-collar employees at a General Motors plant (now closed) in Linden, N.J., the sociologist Ruth Milkman of City University of New York found that many line workers, in their off-hours, did home renovation and other skilled work.

“I have often thought,” Ms. Milkman says, “that these extracurricular jobs were an effort on the part of the workers to regain their dignity after suffering the degradation of repetitive assembly line work in the factory.”

|NYT Excerpt
(Though the dignity not lost on him, but Ms.Milkman who herself probably never grew up or had to do any of these labours)