I can.
Glasgow, Lancashire and Yorkshire.
Based solely upon what I've seen when visiting and the number of people I know who habitually carry offensive weapons outside for and have used their illegally carried knives in at least 2 fights.
That said- there are a few extremely dangerous areas of London that have long been known hotspots for the treble .
Knife crime, lucrative drugs dealing involving coerced children and regular blatantly thuggish antisocial behaviour in the streets or other people's private residential premises caused by savage criminal gangs that have access to a massive stash of illegal weaponry and seem to have no limits plus zero fear of anything.