[zingmars]

Pocket knives are very useful for (adult) backpackers, mountaineers and other people who do a lot of outdoors stuff. Hell even in every day life pocket knives can come in handy. You never know when you will need to cut a zip tie or something.

[ahje]

As a home owner I wouldn't be able to go outside without my multi-tool (which includes a 7 cm foldable blade). I use it on a daily basis, and always keep it in my pocket even when going somewhere.

Only reaction I ever got was from a security guard at a store, when I took it up to cut a piece of cable because the store's cable cutter was too dull. He asked where I bought it.

When I was a kid, I walked around with a 10 cm utility knife in my belt, at all times. If I'd done that today on the other hand...