I hear you, we went through a heaven obsession with the 4yr old ... cute until you get the when can i go and you start worrying it is the foreshadow of a cheesy tv movie. Or the 4 yr olds issue with "where" food comes from... "did they hurt someone to make this" (and we are on the opposite planet from vegans). Some how we made it to 6 with #1 ... then she read Addy (american girl civil war). nothing like explaing slavery and looking straight into her eyes when she asks but they won the war and nobody can hurt people like that. i could still cry - in part because of the reality and in part because i danced around an answer... i'm all for truth but she is barely 6.
good luck to you.