Now, think about where it all stemmed from.
A bunch of men trying to survive by living in caves. Do you know how speech came about? People would point to things, and grunt at it. Certain grunts came about to indivudual things for every item. For example, you point to a rock. "Uh, uh... ROCK, uh..." Etc. And we just worked our way from there. You ever thing about just how advance speech is now, starting at something like that? Where did words like 'noun' or 'it' or 'or' come about, huh?
OK, then. Think about how our culture goes. We have role models, we have manners, and we have rules. Where did this come about? A bunch of cave people yelling at their daughter for being pregnant? I doubt it. Pretty weird, huh?
Think about common phrases and what they mean. I was watching an episode of 'Friends' and decided someone who learned how to talk perfect English wouldn't understand a lot of what people are saying if that's all they learned? And I'm not talking about just slang. What is "The little general?" when used in sexual inuendo, huh? I'll bet you all can guess.
And there are countless more examples of how odd things went! Variables affecting each other and how we live.
And all this, stemming from a bunch of people grunting in caves.