I think it's good to discuss different theories about how we came here, it's inspiring and thought provoking whereas religion represses freedom of thought and boxes us in with silly rules, false incentives and deterrents.
If I ever have children and they ask how we came here, I will say "That's a very interesting question kids, probably the most interesting question ever asked" and go on to explain that the mormons believe this and the Darwinists believe that and that their uncle Nigel is a Christian and what he believes was imposed upon his kids as fact which is why when they grew into teenagers and discovered that they had been denied freedom of thought, they rebelled against it.