Economic is always an important subject at school. If economic is not your major, it also can help you to have basic knowledge about economy system and learn about trading.
I think as long as you have basic knowledge in economy, you can easily adopt and understand about the situation of economy. Those people must need to study Economics are the ones that really need for their job or for their daily routine, but we should also study economics because we have unlimited needs for our daily lives. Economics is really important to understand because we have unlimited needs but our source of needs is limited.