I find it rather weird for Australians to complain of a 'nanny state', then decide to move to an authoritarian State with repressive laws regarding freedom of speech, minimal rights etc. I moved to Thailand to retire, but got cancer which I couldn't afford for long term treatment in Thailand and had to return to Oz. My wife and I still have a house in Thailand, when end of live gets close will return to Thailand to be near to her family.
To respond to a member, one can obtain a retrement visa for Australia, but it is costly. Australia is increasingly expensive, especially rental accommodation and daily living costs making Thailand economically attractive if one could afford to self insure. The elderly can be socially isolated in Oz, which can be a motivator, but I would view it as jumping from the frying pan into a fire.
I live in the Noosa area, which is lovely, take a look...
https://www.visitnoosa.com.au/