They have "knife control" laws in the UK, that are as strict as our gun laws. For instance, carrying a lock blade is illegal. About 7 years ago there was a case where a person was arrested for carrying a "hoof cleaning" multi-tool (kind of like a Leatherman for horse owners).
They have public service announcements that your knife doesn't have to have a point to be useful.
They have jumped the shark.
If I lived there, I would carry the longest piece of iron water pipe that would fit in a backpack. And if I saw a jihadi, I would club his brains out.