Why when we study economics do we tend not to learn good theories to start with?

Economists look at the world totally through different eyes than that of anthropologists, biologists, classicists, or practitioners of any other discipline. They try considering issues and problems with the help of economic theories that are done on the basic assumptions in relation to human behavior. These assumptions are totally varied than the assumptions that might be used by an anthropologist or psychologist. A good theory is represented as to how the variables can interact with each other. A good theory helps to understand and analyze complex issues and confine the key features of the object or situations.