I would say that 99.9% of people that join the Forces don't do so in the hope they can go off and kill someone
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My Dad is 70. He left school at 14 barely being able to read and write. He joined the Army as soon as he could.He did 22 years, was in the Radfan, the Falklands ,UN work in Cyprus etc. He got exams, saw places he'd never have got to see, helped many, many people. He also saw horrific sights. He would never have got the opportunities that he did if he had stayed working in thefactory. In fact he would probably have been out if a job. All the factories in this town are long gone.
My brother joined up from school. He left school with a handful of cses and O Levels, at the absolute height of unemployment. He also did 22 years. He is a highly qualified engineer now. Again because of the Army.
Like or not it is seen as a career.