Yeah, i had the unfortunate luck of meeting a nazi through an old school mate who's new friendship group just happened to contain one. This was almost 30 years ago. He sold drugs, I wanted some drugs. When I went to score, he had a collection of ornamental knives he was showing me. Then there was one he liked, "cos it was one you can use". He gave me a lift back to the train station like the nice guy he was and he and his girlfriend yelled racist slurs out the car window at his pacific islander neighbours. I was terrified and glad I'd moved away from the area in which those fucking bogan scum lords lived. Oh my, people are shit and drug dealers are some of the lowest piles of shit I've ever known.
Land of the free, baby! Yeeehawww! I can get a case of beer and some knives to play with! Meanwhile all I got was a cherry Slurpee and the dude said "is that all you're getting? You're alright then" and gave it to me for free! Currently slurping in the car on a hill at the edge of Moab watching the sunset over the red mountains.
That actually makes sense, though. Those poor people couldn't take their knives on the plane, so they can buy one at the terminal as soon as they land.
Why they have to carry a knife everywhere in the first place, I can't answer. It's a cultural thing.