I think it happened out of competition, acquisition (wars and battles) and jealousy. Human by nature are very selfish beings. In natural selection of things, selfishness is not a bad thing. Their survival depended on it.

And it could have happen as you said. Someone probably thought "why? Why am I wasting my energy chasing these stupid antelopes every day? Why don't I catch a couple of them alive and breed them and harvest them for food and clothing?".

I think....


>People often wonder where the cultural explosion came from. It seems
>art, and advanced tools, and richer language and cultures seemed to pop
>up out of nowhere at the same time tens of thousands of years ago.
>
>Noone really knows why. I think it is this:
>
>Somebody asked a question.
>
>Think about it. At some point in time human beings had language. They
>could use it to give commands to each other in order to hunt or maybe
>even tell stories to each other.
>
>But no one had invented the word "How" or "Why" yet. Noone had ever
>asked another person a question. The only way their culture could grow
>is when they observed stuff.
>
>And then that all changed. Someone asked a question.
>
>What is more, they realized that noone had an answer to some of those
>questions so they did something pretty cool.
>
>They made one up.
>
>Think about it. There has to be sometime in our species' development
>when this happened for the first time.
>
>They didn't just take commands, they didn't just listen to stories; but
>they found understanding in what they were doing, and they could make
>up their own stories.
>
>The result was they could ask "Why do I do it this way? Can't I do it
>in a new better way?" which lead to rapid advances in tool making. And
>another result was art.
>
>Culture could now grow deeper and richer and in new dimensions.