Sometimes you wonder if they're raised as children / indoctrinated / taught at school that the main motto is "Mind your own business, at all cost".
I don't wanna say it but I live in Holland and I think the Dutch are sort of like this also. I've heard of lots of instances of people being knocked off bikes/scooters and nobody helps them at all, just drive on by. I do be trolling Dutchguy quite a lot but the culture here is sort of "look after yourself and yourself only".
A girl in work in the canteen fell over in front of about 200 people a few months ago, spilling her tray everwhere just after she finished her lunch. I was the only one who got up to help her to her feet and check she was okay, people were too embarrassed or looked away. She was holding her ankle like she twisted it but it was more her pride me thinks because she was fine after a minute or two.
About 3am back in Ireland one night this guy got out of a car with a ball and chain with spikes, swinging it and randomly attacking a Brazilian guy in a carpark. They both ended up on the ground and two cars drove up to them and the guys friends hopped out and started kicking the Brazilian guy. I jumped in to stop them fucking killing him, they just looked at me and said nothing and drove away...saved the dude from a serious beating, he was thankful and it was completely random, he didn't know them at all they were just off their face on drugs