Sketchy places aside, one of the differences between the USA, and other places in the world where people have guns, is that most of the rest of the world sets boundaries on who can have them, how they can store or transport them, etc., and the USA doesn't appear to have any effective controls (and the NRA vehemently opposes any attempt to implement them). It's pointless for Chicago to implement city-wide gun control when people can simply drive to the next town and get what they want. (It's equally pointless for Toronto to attempt anything similar.)
Switzerland has high gun ownership. It also has strong background checks, and mandatory registration, and strong controls on storage and transport. Reading material: https://www.businessinsider.com/switzerland-gun-laws-rates-of-gun-deaths-2018-2
Switzerland has high gun ownership. It also has strong background checks, and mandatory registration, and strong controls on storage and transport. Reading material: https://www.businessinsider.com/switzerland-gun-laws-rates-of-gun-deaths-2018-2