Are Children More Forgiving Than Grown-Ups?

My question has to do with children vs adult and childrens capabilities to be more forgiving than we grown ups? My verdict on this subject is "yes" they are way more forgiving than we are. We are always preaching to them how they should learn a thing or two from us, well we have that in reverse, and should be learning from them, and let some of their ways rub off on us. I think the trouble with adults is that as we age we seem to forget how forgive and forget. It's amazing that we we were once young and nothing bothered us and we are totally different now. We feel the need to complicate even the simplest matters until they snowball. I can remember being in 3rd grade and having an argument with a dear friend and by the time the school bell rang we were friends again as if nothing happened. My question is why are children more forgiving than we are. I think it's because we are exposed to very little as kids and that is what does us good, the more we knew the worse off we became.