The rules are, if you leave the Lines or want to go to the DFAC, you are to be in uniform. That means you can only doss about in civvys around Hero's/ Piccacento's or if you want to get your tits out, round your block. The number of Brits I encountered sauntering to the BW in civvys (and this only a few months ago) after bold warning notices on every exit door in every block informing personnel that civvys were only permissable within the walls, suggests confirms people are sticking 2 fingers up like a chav, and ignoring the directives from above and subsequently pssiing off the powers that be that write them.
I am not anal, but the actions of the (Tri Service) 'doesn't apply to me' crowd inevitably cascade down and cause unnecessary bullsiht for everyone else.