The east asian region is known for massive amounts of people. how do the masses live? what is life like in these urban/rural centers?

In compacted living spaces, and very packed together

Explanation: In east asia there are hardly any houses and flats, the most is a very miniture apartment that a family of three or more has to share because the culture within china is to take care of their parents thus the elderly will live with their children's family making what little space was available even smaller. Life is quite difficult becuase people have larger families and some only have one person working to provide money and food thus money is very tight.