“THAT’S not fair! She got more than I did! You love him more than me!” How many times have you heard those words from a small child? How many times have you thought them yourself — even as an adult?
We are born with the innate need to alter the things we experience as unjust. A toddler who needs attention drives his parents crazy, whining and needling, just to be heard. A teenager who feels unjustly assessed by parents or teachers will often act out in ways that assert her frustration with not being judged fairly.
And as adults, we complain (or kvetch) about things that bother us or that we feel are wrong.