Teaching children origin myths is perfectly acceptable, IMO, but those myths do not belong in the science class, and even teached as part of a religious study, it needs to be emphasized the myth is one of many, and all of them are derived from oral traditions passed down, and are not, in any way, verifiable.
“I've noticed that about your people, Doctor. You find it easier to understand the death of one than the death of a million. You speak about the objective hardness of the Vulcan heart, yet how little room there seems to be in yours.” - Spock, The Immunity Syndrome
Leonard Nimoy: 1931 - 2015