Peace don't come without a cost
As children, we often take things for granted and peace is one of them, because disagreements at that stage are usually minor and quickly forgotten. As we grow older, conflicts can become more serious and long-lasting and we leave things hanging with the expectation that they will resolve themselves like when we were young. I know of situations where family members have held grudges for years over something said or done. To maintain peace, conscious efforts are needed by the parties involved to ensure matters are resolved so that relationships can be kept safe.