Back in the '70s some friends of mine got into Scottish 18th-C reenacting. That's the only aspect that ever tempted me- they got away with wearing sgain dubh, dirk, and sometimes even flintlock pistols and basket-hilted broadswords just about anywhere. Only once did I see it questioned back then, in a bar by an off-duty FBI agent. My friend said "it's part of my ETHNIC costume. Do you want to hassle me for wearing my ETHNIC costume?". He backed off. My friend was croatian by descent.
I was dismayed to find out that now the PC emasculation of our culture has gone so far as to condemn the dirk and create little one piece non-sgian dubhs with imitation sheaths where their blades should be. Reminds me of pictures I saw of Old West reenactors in Germany, dressed as cowboys and indians, but unable to have any weapons. Very sad.