Think most of the genuinely vulnerable are covered, but after that very hit and miss. In spite of Victoria's current problems, Covid isn't a threat and think it's made people complacent.
High vaccine rates are key to opening borders, and the govt have failed a little here. Australia needs a roadmap to opening up. Covid is inevitably coming as even vaccinated people can transmit so best to get everyone done. There is talk of a trial allowing vaccinated people a far easier return to Australia than the current 14 days hard hotel quarantine. They probably need to incentivise vaccine participa