Taking Responsibilities for Your Actions
So adults are never forced into Scientology, so whatever they experience is the results of their choices. In yoga and Buddhism they have the concept of karma. In Scientology they believe in reincarnation and it is taught that something harmful does not happen to you unless you did it to somebody else. So that means the children in Scientology who have had terrible experiences gave their kids some terrible experiences. This negates the need for all this resentment, anger, bitterness, and hate.
So that is why LRH says "do unto others as you would have them do unto you." Actually Jesus is credited for saying that. This concept would explain why some have bad experiences in Scientology and some have good experinces.