I think quick joey small has a point about the UK , but my 2cents worth -

I carry a penknife (SAK, UKPK or something similar) daily, and frequently use it - but usually for opening parcels and pulling staples and the like.

The 'wilderness' in the UK is on a differnt scale to the US - you can die of hypothermia on a hillside easily enough, but you are rarely many miles from civilisation of some kind. Lots of Bushcraft enthusiasts, who get landowner permission to chop trees and build shelters and the like.

But in the UK a survival bag and a whistle are the primary survival tools (this may be equally true in a lot of places if we are honest)

In the UK - A knife for camping? Absolutely, but it will mostly be for food prep and little tasks. A knife for edc? Absolutely, but it had better fit in a small pocket and not lock. A knife for self-defence? Absolutley not. A knife for the zombie apocalypse? Absolutely,but let's remember we're just having fun with it ;-)