Im not believe for the saying, that its "still good in the eye of the kid all the things that the old one do even if it is bad". When we are young , we already have our +Morality . What is right, what is wrong. So we already know if the old one done right or wrong. Don't be too fool that all kids are stupid. They are smart enough to know some reality this world have.

We can say that we also the victim of bullying or abused by other people when we are child. That trauma is still in our mind until we die. We cannot escape from that. So the better way is to accept or absorb what can be helpful now and ignore the bad happenings before. Moved on , because other people already move on. You are the only one left, Are you?