I agree with what seems to be the majority opinion here. Wearing a sgian dubh is usually more trouble than it is worth. I own 2 sgian dubhs and have only worn one of them and that was at my wedding.

Each one cost over $100 and are far less useful than my $30 folder. They do make good letter openers thou. My advice is that unless you are at a private function think twice about wearing a sgian dubh, traditional or not.