do you honestly think that American teenagers living in Malibu, would join a "cult" even if their father was head of it?  Daya and Premlata received Knowledge not because they were joining a "cult".  They received Knowledge so that they could learn to go within.  I'm sure they've gotten grief from various classmates over the years about their father being a Master.  But they still wanted to learn how to experience peace within.  I'm sure that if you had been outside their Knowledge session yelling at them "your father is the leader of a cult", it wouldn't have fazed them a bit.  They're smart kids.  They want Truth.