They're definitely a thing here man, every hunter,farmer,man, woman and child seems to have one of these bad boys in their pocket out here in the sticks at least. Alot of the old boys around here have had the same opinel for 50 years.
As for England yeah, sadly a pointy stick will get you in trouble.
I need to stay out of England methinks...
I know old boys like that back in the hills, although what they carry is usually a little different 😎