I think part of the problem is the death of the apprentiship, my dad is a time served carpenter, his apprentiship was four years. He could build you anything using wood. I myself did a three year indentured apprentiship and I can ment anything mechanical, I can build you a chemical plant, I can manage a multi million pound project. My last renovation project the windows had to be fitted by the window company, so they could supply the FENSA certificate, the two guys fitting the windows, one started out as a butcher and the other was a poor DIYer. They were hopeless. A friend is a time services joiner and worked for a company doing disabled bathroom adaptions, his boss laid off all the time server guys and replaced them with minimum wage tryers. He now works on a self employed basis for the same company, going round fault fixing!