Inculcate in a 5 yo your personal fantasies;
Declare these to be: The Truth, the Sole Truth and Nothing But.
He can live through childhood with that comfy Certainty and the other stories from the nursery.

Expose the youth to critial thinking, to various histories (including a history of mythology);
she may abandon childhood things and become -- unpredictable. And what could be worse than that?

(As to Original Sin and other conditioning in the bearing of perpetual guilt: expose the tyke to Al Capp's Schmoo -- each one is born pregnant, deliciously-edible (and Loves.. to be eaten by ravenous homo-saps!)
How's That for a handy genetic predisposition?

{{ I see.. I see.. a movement to gene-splice Schmoo and Repo strains -- for everyone's comfort and convenience. }}
Beats Soylent Green and ... we do so love Econ-logic Solutions, eh?

Be interesting to see too, some day, a credible survey of those home-schooled within a particularly narrow orthodoxy, one with little or no discussion of the many views of 'spirituality' to be found: how that-all worked out by, say - age 29 (ya can't trust anyone over 30, some said -- but I digress.)