Could you tell me if the parents are too old can the child suffer of depression later?

Not directly, but...: I doubt it could be directly related to parental age, but having older parents, like having younger ones implies lots of things. They might not be as healthy or energetic, tolerant, interested in new things, attractive, easy to bring home friends to meet, etc., etc. If you feel cheated by your childhood, & especially if you feel guilty about the resentment - i can easily imagine feeling depressed.