The possible very original source of this fetish, pre-dating my brief spell as a boy scout, has been addressed in an October 2013 blog post of mine - "Where did my khaki fetish come from?"
I often wonder if my ongoing desires represent a subconscious, cleansing yearning to return to the state of the innocent lad I was before these scouting events happened and an intense wish that I hadn't come out of that week of Scout Camp soiled and corrupted (in a number of ways) at the hands of a group of more senior scouts who took it on themselves to have humiliating 'fun' with me, coupled with an element of what was seen as their revenge (for something I hadn't even done), resulting in their having pointed me in a certain direction regarding my then imminent adolescent development - and all capped with a vicious and relentless caning on the backside by the scoutmaster-priest, givng me the thrashing not just of my own life, but much more than most boys would ever experience. Those four scouts will never have had the foggiest idea what their actions did to me and my life. If only I could trace them now to tell them, though I can't find them all these years later.
However, because I know that very few, if any, guys share my feelings in this way, I am perfectly able to consign it all to the background, and can assure all my followers that my particular leanings are not essential for importing into all my other varied sexual tastes - though for my own satisfaction, my fetishes may just 'pop up' in an occasional mention. But I'm not going to force the subject onto others for whom my own attractions are minimal or non-existent.
Just thought I ought to make that clear.