Because there were no supermarkets. When they ran out of food, they had
to go look for more. When they found it, they had no major reason to
go back where they came from, since there were no mortgages, office
buildings, elementary schools, high school football teams, churches, shoe stores, or radio stations.
Early humans did not raise crops or animals for food. They picked fruit, berries, leaves and roots that grew wild near where they lived, and hunted animals for meat. If they picked and hunted faster than food could replenish itself, then the supply ran low, and they simply picked up and went looking for a place that had more.
About 90% drink caffeine in some form on a daily basis. Figuring out the percent that have tried caffeine is much more difficult.
Answer:
Yes, citizens should definitely be allowed to overturn government mandates. The reason is that political authority, according to most contemporary political theories, are based on the idea of the social contract and the consent of the governed.
These two ideas state that governments derive their power from mutual agreement with the citizens they rule, and that as result, it is citizens who have ultimate sovereignty, and this gives them the right to overthrow a government or oppose its mandates.