it is not that they were constantly told what to do on terra two , goodness knows it would have been hard to have a less hands on approach to child rearing than that of their parents ' and the sisters ' , after all living in a world without peril does come with wonderful opportunities for self-discovery , but as they grew and experimented with life there was always someone there to give them comfort and advice , someone wiser , who had the answers to their questions , someone who loved them and kept them from harm .