There are doubtless all kinds of ways of explaining why people want security, but I do not think we can start with the psychological explanations. Even psychological states like fear or desire for safety are conditioned by social and political forms of intimidation and scare-mongering that intensify those emotions, and even work to persuade people that nothing less than their survival is at stake.
And the cat's in the cradle and the silver spoon Little boy blue and the man in the moon.