As for the knife business - there is rising knife-crime in UK and there are plenty of people trying to highlight it and reduce it - people don't generally kill other people without weapons........
Removing all sharp objects from kitchens is clearly an extreme and impractical view and we already have controls on who can buy knives - but when weapons are easily found around the house thanks to the parents purchases, it is not surprise that young people who feel threatened (for whatever reason) decide that carrying knives makes them safer - it doesn't. Sound like a familiar scenario?????? We don't have a National Knife Association in UK to prevent controls on weapons