Coffee shop is a very lovely place for some people to meet each others for chitchat and get information. They are discussing alot of topic in coffee shop, such as about their job, politic, economy, education and etc.
Some people are always starting an argument. they often have very little information on subject but this doesn't matters because they only discussing for have fun to each others.
Sometimes they are discussing diffrent point of view in their topic but they listen to each others opinions. Each person tries to explain his point of view and he listen to other argument too. They build good relationship between each other.
In my place and some other part of my province people meet and talk over all local problems. The people sometimes disagree with each other and there maybe some argument. each side will try to persuade others that their point of view is the best but frequently the two sides are not really far apart in their views. this kind of public discussion helps to settle their differences. this is a healthy situation in discussing.