Yes, but it's not about the suburbs in this survey. Paris suburbs are a lot more cheaper, and many of my friends flew Paris to get there. Paris is appealing to the wealthy and old people,and because of them the costs of real estate are sky rocketting, a lot of young people cannot afford an appartment in Paris. And 10 euros a beer when the average income is 1500 euros/months is ridiculous. I want cheap beer !

Let's take as a benchmark intentional homicide rates: North America 6.5, West Europe 1.5. Also, more murders per capita in US than Armenia or India.

You'll need to be more specific. They have really nice ones Levallois, Neuilly, Versailles. And not so nice ones: St. Denis, aubervillier. If you take the train from CDG to Paris than you only see the bad. The train from Orly to Paris has lots of nice areas. Anything by La Defense and Versailles has as sizable expat population, ie. $£€, so they are well off.

Just like New York's South Bronx doesn't surround the city. The bad suburbs don't surround Paris.

Yes, because the presence of a Mafia in an area is really the same as the presence of a prison. That's outstanding logic!