It is a good idea to consider supply and demand when considering your future career. When trying to decide what to study or what industry to join as a worker, there are many factors that we might consider. We might consider our interests, the kind of lifestyle that we desire, the importance of an industry to society at large, etc. One of the factors we should consider is the supply and demand of the career. This will give us an idea of how easy or difficult it is to enter the area and make a living from it. This could help us make a choice. Even if this is not the only factor we consider, it will still allow us to make a more informed decision.