Originally Posted by
Dave Noble
That is indeed the listed policy for Qantas Club members, though that page does not state that the same generous policy applies to those entering by virtue of One World status from another carrier
In practice it seems Qantas appear to apply the child policy listed under the Qantas Club page for oneworld elites as well.
Note that I have come across reports of AA and BA on occasion adhering to the oneworld single guest rule with children being counted as a guest.