Sorry rubbish. It is an achiveable drive up the east coast but it is not to the west. More to the point if you want to fly the flight options on the east coast are greater and costs lower. Not so flights to the west.Neither does being based in Sydney help matters if your parents live in Melbourne or Brisbane or Perth or Hobart or Adelaide. Why is Sydney so important? Do all submarines being recruited come from Sydney? What is wrong with hiring a baby sitter?
Due to our demographics the majority of Naval recruitement does come from the east coast and the idea of "head west and stay there" if you choose (or are pushed) into subs is less then appealing. Particulary when compared to the surface ship folk who have a pretty good chance of rotating out of there.