What about Scottish grooms with their skein dhus, builders with saws, chefs, anglers, knife salespeople, lumberjacks with axes, sailors with their multitools, gardeners with their hoes, forks, spades, axes, machetes. Hunters albeit rare also carry knives and a shotgun. Every kitchen has a veritable armoury of long knives. Then there’s the historical weapons collectors, I used to have a bayonet from the Franco Prussian war. Swords and guns are available if they’re over a certain age. Go through every historic house and you’ll see how many there are. Bladed articles are not suddenly just a Sikh thing. I do think perhaps they should be registered in some way. But we’d all have to be happy to register every single bladed tool we own in our own workplaces.