It's up to the parents as to how they want their children raised. How would it be received if the Guide told Christian children that Jesus was a myth, or that Mohammad would be considered a pedophile for having sex with Aisha who was five? That would be inappropriate. I used to teach religious children and I was told not to discuss dinosaurs with them because they were told that fossils were put on earth to test our faith. Absurd? Yes, but I also do not tell Christian kids that Santa is a hoax either.
Israeli PM to Palestinian President Abbas: We must fight terror together (Haaretz)
from the article: Nature guides may be hiding facts to avoid offending religious hikers