WHY IS GRAMMAR IMPORTANT? Reading Between the Lines

Grammar is all about meaning.  Children are frustrated no end when adults ask them to "read between the lines".  Knowing the context and the specific situation enables the adult to understand beyond the expressed words.  It is said that women do this better than men, but definitely adults do it better than children who are not as well-read nor have the life experience.

And understanding the difference between the Active Voice as opposed to the Passive Voice, taught in Grade 10, helps you read between the lines that the perpetrator is a) unknown or b) known but being hidden.
Here is what I wrote for Facebook:
Why is learning grammar important? Note the use of the Passive Voice in this interview: "a decision was made". This indicates that the person who made the decision is either unknown or known and being hidden. http://therealnews.com/t2/index.php?option=com_content&task=view&id=31&Itemid=74&jumival=7300