yeah we don't have to worry about food anymore and a house
Back in the day they did not no how to farm so instead they would hunt. when people were hungry they would say I am going to go get food. Sometimes when people would go out hunt they might die because they were not the most experienced at hunting so there pray might eat them.
Later when people found out how to farm they would get food for them self and with the extra they would trade with others for other food like meat or veggies. when people started to farm instead of hunting which made less people die to animals so then they started to get more ideas like they would tame animals to help them farm.
Once people started to learn how to build houses they would go and gather materials to build a house and make them self a permanent house. life was good for them they got all the food they wanted and did not have to worry about shelter anymore. then when people walked by they would see the houses and they would come over and make there house and that was how they started a small city.