would use knives, sticks, boards with nails in them
All of which are illegal in the UK and many parts of the EU. Heck a man in the UK was recently arrested carrying a potato peeler. They are called dangerous objects and you are only allowed to carry them if you are a socially acceptable cause.
Once they got your guns they come for your knives, baseball bats and finally potato peeler. Weapon Dangerous object control is one of the most slippery slopes there is. And the control freaks keep it well greased.
And this thing
Most likely because it was hanging out with other dangerous objects.
Total insanity!