Every man who has consideration for others or for his environment isn't a 'wuss'. The fact is, people tend to generalize, and if someone feels the need to make a show of whipping open his knife in a public space, many will view all knife carriers as 'reckless', 'obnoxious', 'unstable', 'dangerous', etc., even if there was no bad intent. And since most people don't carry a knife, 'they' are the majority, and the majority votes. You may not care, but someone else might care enough to push for tougher legislation. So one can do whatever one wants, wherever one wants and not care what anyone thinks. But don't turn around and wonder why so many people have or develop a negative view of carrying knives.
Jim
I don't feel that it is 'considerate' of others to be afraid to cut a piece of fruit in public, as the OP stated. I feel it is ridiculous to be that extremely sensitive. The fact is, to many people, seeing someone use a knife that isn't made of plastic or came to them with a steak at a restaurant, will freak them out. Doesn't matter if the knife in question is an auto or a SAK, and it doesn't matter if the user is just standing around flicking it open and closed, or if they're using it for a legitimate purpose. And you can't always be worried about these people. For god's sakes, if you want to cut a piece of fruit, or open a package, or whatever, just do it!