Muted Group Theory

I remember those days back when I was in elementary. It was the time that our English teacher taught us about proper use of pronouns that if nothing of the subject is stated, the masculine pronouns should directly be used. She taught the lesson stiffly as if it were very serious. Now, to think about it, she being a woman did not have side-comments or reactions to it or so it seemed to be. I believe she experienced and hopefully is not anymore experiencing the false consciousness that men goes first even in language. I remember the times I forced myself to use "he/she" instead of just "he" in writing my sentences for I don't know what reason but still after checking, my teacher just crossed out the "she" part. It is a sad fact.