Many people say they are not perfect and that nobody is perfect for them to have an excuse to rob and kill other people while some others have no definition for perfect yet say they are not it because they look out for themselves first. Everybody should look out for themselves first and that does not make anyone not perfect. To me, when you stop being perfect is when you stop using the golden rule when dealing with others. If you dont have a definition for perfect, do not say you are not it because it means a lot, as so many criminals are around looking for just that encouragement to validate their behaviour.
An adult must be perfect.