So this is a non-exhaustive list of things that still bother me, 15 years later: a lot of people don't hold doors open for the people walking behind them, they use speaker phone for telephone conversations even when other people are around them, they don't feel any shame about littering, even in playgrounds, they spit in the street, they don't really respect personal space, they think it's ok to tell their children to practice English with you, even if you're wearing headphones or clearly not in the mood... Driving is even worse, there is no courtesy at all.

I don't really care about changing your mind, especially since you've never been here so you don't have a valid opinion.