I think people have the natural instinct to survive in the wild because we have the common sense to know what is right and what is wrong. If we were in the wild we would know to start a fire to keep warm, but we would also know what to eat and what not to eat.

One of the many reasons that people have the natural instinct to survive in the wild is because humans have natural instincts like animals. Humans have the "common sense" to know how to figure things out like how to build a fire, or find food and know if it is safe to eat or not.

In The Lord of The Flies they have multiple people on the island at one time (obviously). In this setting of the island they have the natural instincts to survive, and also start a type of civilization, so they can minimize the fights/arguing etc and be peaceful.

Having the natural instinct to survive in the wild has a scientific perspective because of evolution. We have the natural instinct to survive in the wild, because our ancestors were animals and they passed on those traits to us. Which help us to survive and know what to do in the wilderness.

In conclusion I think people have the natural instinct to know how to survive in the wild, because we have common sense to know how to take care of ourselves. But some people have stronger instincts than others.