>Most blue collar labor is fungible - meaning that just about any person who is not incapacitated can do it. I think you underestimate the skill and training r

>Most blue collar labor is fungible - meaning that just about any person who is not incapacitated can do it. I think you underestimate the skill and training required for many blue-collar professions. I probably have apprentice-level skills as a plumber, an electrician and as a mechanic. I know enough to say with some authority that it would take years for me to get to journeyman level. I don't think the average person could be a really good programmer, and I don't think the average person could be a really good master mechanic, either.