Pretty much everything we do in life is faith-based. We see it in Pavlovian conditioning, Bayesian thinking, and in Skinner boxes. Time and time again psychology experiments show us that we process the world not by applying cold, unfeeling reason, but through our intuitive sense of trust in it.
When things happen to violate that trust, we adjust our worldview into being more skeptical, more critical, and even sometimes more paranoid. There's no real right or wrong level of paranoia because your experiences differ from the experiences of someone else. You are more aware of certain elements that others are not because their focus is weighted towards different elements of a situation.
I'm certain everybody would be a lot more cognizant of dangers if they survived a kidnapping. That's how human beings operate. We adapt our thinking to our experiences and exposure
