While National Service did have conscripts fighting, they also had them working in other areas. One of my friends was in the Catering Corps - and still annoys his wife (of 49 years) by telling her how to cook ("If it's brown, turn it round, if it's black, it's done"). If worked properly, other trades could be taught that would suit the skill, interest or needs of the individual. However, I also knew a lad who came out of the RAF (not National Service) and couldn't find a job. His father was moaning about it one day and I suggested he used the skills taught by the service. Apparently there are not many airlines who want parachute packers
There is a lot to be said for not settling on a career straight after leaving school. I wonder how many of us are still in the same "trade" now? I must have changed "careers" about five or six times in the last forty years! OK, some are forced on us, but sometimes a skill in one trade can be used in another. In my case, it was working with - and thus knowing - David Brown tractors that led me to a job as a storeman for a DB agency. The storeman's knowledge helped when working as a school technician (though the degree in engineering helped more in the last school!).
My hearing loss was caused by working a hammer mill (milling barley for pigs), powered by a Ferguson TVO engine, in an empty barn during a cold winter (so the doors were shut).
I heard that ... pardon?