Based on my experience and observation in my school, for me, economics is the first we learn since knowledge about the economy will contribute to the growth of country and people. And it's also important for the people and nation of all countries. So if the country is going to develop as well as the economy. If you want to learn the development of other nations, test the economy of the country first. If the economy is going to expand, other countries must link and invest the new business. Therefore, economic growth and development are important for people. The growth of people is therefore necessary for the growth of the country. But some country won't know how to make the economy better. There is no money in the economy. It's part of the land.
What you talk is what every person learn about economy and those are basics, we all learn them as we grow. I think here the topic is about economics itself, about production, consumption and distribution, about all economic activities. Economic is a social science with many branches.
For better understanding you need to study any science. Will you study at home from your computer, at university, or your father have a store and you learn while you practice, it's not matter in my opinion, every way have its pros and cons, it's about how hard you wish to learn something and how hard you work for that. We have successful people from all classes, each person have a different story, some raised from bottom, others dropped from top. What counts is hard work and faith in what you are doing, where ever you are, which ever way you choose, just hard work and faith.