In paleolithic times, the only main job was hunting for food.
Time to go hunting.
I'm so glad we don't have to hunt for food anymore!
In neolithic times, there were many more jobs. There were weavers, basket makers, traders and tool makers, clothes makers, and more.
The reason why there were more job options in the neolithic age is because of agriculture. Agriculture was the invention of farming. And with farming, people had more time to do other things, instead of hunting for food all day.