Sorry what do you mean, Sandra - you are outside Australia and want an exemption to get here? Your family member in Australia is the one who has dementia? There is a facebook group called "Partners Apart" which is about Australian travel exemptions for partners, but could be of some help for fami...

Yes you need a travel exemption whether you are going in or out of Australia.

For some of us who've been separated from our loved ones for beyond 6 months already, the hope of getting them here on a student visa as soon as they're reinstated is all we've got at the moment.

I'd have signed that if not for the first suck-up line "We are deeply grateful for the border closures which are keeping us safe, but..."