Wouldn't not. Always do. Where ever, how ever. It's what I am/do. Weddings, Funerals, and Retirements will get the fancier models... just because it probable won't see any hard use, but I always have a knife with me. Suit and tie calls for a dress knife that won't pull your pocket down so much. Just my humble opinion though... hell, at this point in life, anyone that knows me will ask what I am carrying at any such "adult" type dress-up occasion. Usually have my Spyderco Tie Clip as well, either in Stag or Abalone