They gave the same reason they did to pass the Sullivan Act in New York and the NFA federally, gang violence. It’s always under the guise of safety for public when in reality it’s about control of the public. I don’t see the appeal of a switchblade. But I’m certainly not for restricting them. I almost always a have a knife on me. The one lone exception is an airport. First thing I pull out of my baggage is the knife I travel w/. Something is better than nothing and unfortunately I can’t travel w/ firearms to a lot of the places I work.