popoeliz

You get unreasonable neighbour every where in the world. But more in big city. But typically, definition of too noisy is party beyond reasonable time before the police will interfere. I have never heard any occasions of police interference on normal noise level.

I think it is important to try to be nice but also as important do not let them push you around. When there is a dispute, try to involve the land lord to resolve with other tenant. (some time they don't care, but those are typically poorly managed estate)

I don't think this is a case of US or China or UK or HK. There are always unreasonable neighbour.

note: from that unreasonable neighbour perspective, he would think that he is reasonable and you are unreasonable.