How much control are we allowed to have over how our neighbors spend their time?
Living close to other people is always going to have its annoyances, even for those who are blessed with nice neighbors. Everybody has their quirks and routines that, unless they live in the middle of nowhere, are probably going to be observed by those who live around them from time to time. It is a normal part of life.
That being said, it is important to go about your daily business while having respect for your neighbors. If things are getting to a point where people are regularly being disturbed or annoyed, then something is going to have to change.
Most people have overheard something they didn’t intend to from their neighbors at one point or another. It can quickly get awkward, but in a lot of these cases, the main responsibility falls on the people who are being loud. Life isn’t always downtempo, but sometimes we have to take things down a few decibels if we don’t want to deal with the judgment from the people next door.