I actually can agree with you that the resentment and bitterness part actually is from the adults that influences the young ones.
Hardly any time a child self learn to be unforgiving, it is usually who he / she learns.
Sometimes I miss those days of child-likeness when hard times happen, but isn't that what Jesus told us, "be like children..." in order to enter the kingdom of (stree-free) Heaven!
Great insights @iamjadeline ! This post definitely worth the upvote and resteem!