You can almost guarantee to see RN and other military personnel from Culdrose in uniform in the Helston branch of Tesco. I am always pleased to see them, and if time and circumstances permit I try and have a word or two with them (I exchanged a cheerful "good morning" with a captain, USAF the other day), although when this involves chatting with attractive female personnel (can't call them Wrens any more) it usually results in a few black looks from Mrs TTN!
Common sense has to prevail, of course, but I'd hate to see the services go back to the days of the 70s when we never wore uniform in public.