Why are we hiring police officers to protect military bases? What’s wrong with that picture?
The reason is that having civilians do that job instead of military police units and soldiers detailed from their units means a smaller active military and that non military police units tasked to due guard duty can spent their time training in their military specialty.
The same goes for hiring civilians to work in the mess halls, aka dining facilities, to replace active duty soldiers assigned for a day to wash dishes, break eggs for the cooks, and the old ‘peel potatoes’ and mop the floors. Those soldiers then can practice their specialty of being infantry, tankers, artillerymen, mechanics, etc.
At least that is what I learned from my 20 years active Army service and then as a Dept Army civilian historian for another 22 years. It is the modern version of allowing women to join the Army during WW2 to serve in stateside secretarial and similar jobs so that the men could be assigned to deploying combat units.
Yes I see your point but on counter point it appears to just be another excuse to increase the size of the bureaucracy. I’d opt for a larger military because the military for the most part is not a career it turns over. Civilian personnel are forever.