Never feel slighted and remember that most people are simply doing what they can with whatever knowledge they possess.
I often tell my own children, particularly when they're angry at someone (or me) about a decision someone (like me) has made: "We are all doing the best we can at any point in time." It's hard for adults to understand; it's really hard for the young to understand, but it's definitely worthy of thought.
RE: (IJCH) Rediscovering Christmas, Forgiveness and Letting Go