"If he's an officer, yes; if he's an NCO, no!" brilliant answer HD. Couldn't agree more.
I would suggest he does the APP or APS course as he would then be a far more attractive option to a SATCO.
"And, anyway, don't they cover such stuff during resettlement training?" answer is no they do not help other than a £2000 which could be used to offset the cost of the civil courses. At least that was the case for me a few years ago.
The resettlement side was a complete waste of time for me. I went for APP and ADV in 2008 and with the two qualifications was offered a couple of jobs. Before my training I contacted several SATCOs and asked what they would have liked me to get and could I visit theirs towers for a famil on the civil side of things. They were more than keen to help which was great for me.
The courses are expensive but you have to speculate to accumulate, that is what some wise person once told me.