Do people change?
As humans we evolved from, in a sense, animals. We all have animalistic characteristics in each and every one of us.
Raise a baby tiger from birth in a home, in civilization and teach it to be a calm and loving animal it will conform to learn to be as loving and as a obedient as a dog. When it is fully grown put the tiger back into its natural habitat and sooner then later its animal instincts of "killing" and "survival of the fetus" will emerge. It will go back to being who he is, what a tiger really is. No matter how long you teach the tiger to be loving and gentle once back it its innate environment something will trigger its true self to emerge.
Humans compared to animals have the ability to learn and evolve therefore could a human learn other ways and change or is who we are at birth pre-determined and will stay with us forever?