It is hard enough just to think of what major to choose, let alone finding out how they are connected to the world of work. But doing a bit of research in this area will not only help you find the studies that may better suit your study needs, but also help you land in the kind of career it is meant to prepare you for. Imagine this scenario: if you hate teaching and doing research, but you have decided to choose sociology as a major. This will some how restrict your career opportunities in the future as job opportunities for sociology are mainly associated with these types of work.
Remember, a choice you make at this stage of learning narrows your future options academically and career-wise. So think clearly before you decide. Try to work out the different scenarios. Pick out a few majors of your interest and plot out the different academic and career paths that are likely to follow from them. This is a fun game to play and also a way to foresee the possible consequences of your choices.
It is not easy to predict the future. But it may be wise, if you have a bit of time, to look into the changing market trends, and therefore also job or career trends. For example, the ageing population would be a factor in Hong Kong that would open new job opportunities in senior care. Similarly, family with less children will increase their spending on quality education and child care.