Italy used to have fatal stabbings daily, and Italian women didn't want to date a man who wasn't good in a knife fight. The stabbings would occur between diners in cafes, in bars, between old men playing checkers. Knife control wouldn't have solved the problem because they also killed each other with barstools, lamps, and broken bottles. They just liked to fight to the death at the drop of a hat as a matter of honor.
Of course, you have a source for that. Because otherwise, we would have to think that you pulled it out of your arse. Again.
, surely you're not implying that you know more about behavior in Italy than he does, are you?