There may be fairies at the bottom of the garden. There is no evidence for it but you can't prove that there aren't any so shouldn't we be agnostic with respect to fairies?
Metaphors are fine if they aid understanding, but sometimes they get in the way.
I don't know what to think about magic and fairy tales.
Complex statistically improbable things are by their nature more difficult to explain than simple statistically probable things.
If children understand that beliefs should be substantiated with evidence as opposed to tradition, authority, revelation or faith, they will automatically work out for themselves that they are atheists.
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God respects me when I work; but God loves me when I sing.