At What Age Are Sleepovers Appropriate?

Mother continues to read from The Christian Mother and The Christian Father, and answers questions from: Debbie, who's concerned about motorcycle culture and lack of reverence; Rob, who's confused about the death penalty; Rafael, who is upset about a sacrilegious ad campaign by David Protein Bars; Paula, who's wondering about male modesty compared to female modesty; Stacy, who'd like to know at what age sleepovers are appropriate; Stephen, who is dealing with older children who reject the faith; and Ann, who would love to know Mother's favorite Marian apparitions.