First of all, a very good and easy to read post.
Stock markets (definition) play a vital role in our day-to-day lives even if we don't notice it, for example, if you have a private pention you insurance company will invest your contributions into shares (stocks) of many different companies.
I think it's important general public understands the basics of stock markets and how to benefit from them. It never hurts to get some extra knowledge and plan for the future.