The beginning of the Doraemon story line is interesting from a Western perspective. Doraemon is sent back in time by Nobita's great-something grandson so his descendants could improve their future. We are told, his future family's misfortunes are a result of Nobita being a putz. Doraemon is to help Nobita reverse the family's unlucky predicament.
In the west we don't have the same tendency to blame our current problems on our ancestors. We celebrate the individual who "makes" his or her own luck. Of course the Japanese do as well but there is a difference. Sorry, I am not articulate enough to explain.