Returning Thanks is a LEARNED Trait.
We are not born grateful creatures. Take a baby for just a little while and you’ll probably hold in your arms what could be best described as a schizophrenic! One minute cooing, the next crying; one minute silent, the next screaming; one minute friendly looking into your eyes, the next flailing every limb with bowed back and blood-red face; one minute smelling sweet, the next…well, you know!
Babies are not born saying, “Thanks”. It is not even the first word they learn. In order for children to learn to return thanks, they must be taught.