I will have to continue to disagree with you. A prepubescent child with no education can learn how to make clothes, most of the clothes in the world are made by

I will have to continue to disagree with you. A prepubescent child with no education can learn how to make clothes, most of the clothes in the world are made by children...so it probably isn't skilled work. Even more complex pieces, i.e. trainers, that require more than just finishing machine work can be made by children. Some work requires specialist knowledge (i.e. tailoring suits) but the majority does not. Welding and metalworking is more complex but not by much. When Japan and Korea were getting into shipbuilding, there definitely was a learning curve which meant places in the West surviving for a short while after their entry...but after a decade or so, they had caught up.