It is true that people like to stay in a home of their liking. Why we call a "Fish Market". In olden days and in villages people with similar habits try to locate in one place. In the South you would have heard of Agraharams where in those days even some of the vegetables like Onion, Potato, Asaphoitida were not used. Progress should not be equvated with living habits. There are certain values in life as a folk. Wearing shoes are permitted in Churches, But it is not permitted in Temples and I think in Mosques. I think Muslims have to wash their hands and feet before entering their prayer hall. Hindus were taking bath in the tank adjacent to the temble before entering the temple. You can find this segregatory behaviour throughout the world. By the look of a location people are able to understand that this is a Muslim Locality or otherwise. Because some people eat fish, or meat or pork that does not mean the others should like. Otherwise go to the extreme level of eating dog-meat compulsory for every Indian Citizen.
