I was flying a long haul flight two times in the last two weeks ORD-FRA and FRA-JFK and I observed something that I wonder if you guys have noticed for other airports. The American passengers out of Chicago were mostly from the Midwest with a handful of people from the west coast, and east coast with connections. But on the whole everyone was very pleasant and were courteous of each other. From where I was everyone tried to not recline to the maximum so everyone had some degree of comfort. Helped others stow items in the overhead. And obeyed the flight attendant without question. Meanwhile on the flight to the United States to New York was completely different. It seamed like everyone but a handful reclined the seats as far back as possible, moved items in the overhead so their items would be closer, and all around complained about everything. The passengers regularly argued with the crew over small things. One person thought they should be able to land with their seat fully reclined, another needed to finish a phone call while taxing, among many other things. From my experience in Portland, OR origination/termination flights people tend to be excessively helpful, nice, and friendly. So here is my question that I'm opening up for lively debate. Do different airports have different clientele and how do they act generally? Is this brought on by a cultural surrounding of the city, region, or national level or is it the luck of the draw?