Why write the layout of Luzhen Hotel in Kong Yiji?

The layout of hotels in Luzhen is different from other places: they are all big counters facing the street, with hot water inside, which can warm wine at any time. People who go to work often spend four coppers to buy a bowl of wine after work in the afternoon and evening. This was more than twenty years ago, and now every bowl has to rise to ten pence. Standing outside the cupboard, they drank hot drinks and had a rest. If you are willing to spend an extra penny, you can buy a dish of salted bamboo shoots or fennel beans as a drink. You can buy a meat dish for a dozen pence. But most of these customers are short-sleeved gangs, and they are generally not so rich. Only people in robes walk into the house next to the shop, ask for wine and vegetables, and sit and drink slowly.

The purpose of this writing is:

"Short clothes gang" refers to the poor, and "long clothes gang" refers to the rich. Kong Yiji in this article is a complete "pauper", but he tries to dress up as a "pauper". Since he can't be a "rich man", he doesn't want others to call him a "poor man". Writing like this at the beginning highlights Kong Yiji's personality characteristics.