Tradesmen and the training of them is an old story. I commenced my apprenticeship in 1961. 5 1/2 years later I was qualified fitter & turner/toolmaker.
I enjoyed the work,It was very satisfying and apparently I was good at it. The pay was the problem The lowest payed of all trades in spite of being the most precise and demanding of all trades. They got away with low wages precisely because men enjoyed the work. It is interesting how people will put up with low pay in a job they enjoy, whereas boring jobs often pay better.
The end result was in a few years I went to sea and began training as a marine engineer, A career that I also enjoyed, and it payed much better, so win, win.