A Boring Dystopia

In the UK, the colloquially named Chair Force had some NCO's go through who stuck out their term in a field that had lots of factors that transferred across to civilian employment. Top of the tree was air traffic controllers - certain branches of the RAF's ATC capability was based at Swanwick anyway so if they ever went to the National Air Traffic Service, a lot of the time they could pick up their stuff from their desk on their last Friday, and move it across the room to another desk for when they came back in new clothes on Monday morning.

Vets are another field that is great to get into if you want your fees paid for, but most of those are officer grades, same deal as pilots. The clerks are generally well trained too - those who used to "fly a desk" as they put it, went on to be good accountants and heath and safety ninjas.

Certainly for the UK, the military gave the option to poorer backgrounds to get expensive qualifications while not generally going near theatres or on deployments.