IMO far too much over-thinking. If there are genuine reasons not to go e.g. you really don’t want to/feel that you would be isolated while he does his dream/have something important here which you wouldn’t want to leave behind, then just throw caution to the wind. What’s the worst that could happen? You could hate it there and then, given your house is here, you could come home.
And as long as you give it an adjustment period, i.e. you’re not likely to go over there and love everything in the first instant because there will be lifestyles to get used to, the fact you maybe can’t just order in the Ocado shop but have to go to the supermarket, the fact that bills etc do go with you regardless of where you go. But then there are the positives, the outdoor lifestyle, the weather which is better for much of the year.
Also be mindful of what you read in the media. The bushfires have been horrendous for the people who have been affected by them, no question. But the vast majority of the population has been unaffected. Holidays to Sidney and even tours to the blue mountains have still been happening. I know someone who went there on Holiday in December/January and said that this smoke which the media is talking about just wasn’t visible in the majority of places, and she went on a tour to the blue mountains. The media’ will always over-hype a story. it would be like the press abroad reporting that England has had terrible flooding and people being put off going there for that reason, when in fact the flooding was in Yorkshire and the majority of us read about it on the news as the people abroad did.
We emigrated to South Africa when I was nine and I hated it. Away from all my friends, sent to a school where I didn’t speak the language, all I wanted was to go home. We didn’t, and when we eventually did all I wanted was to stay. I’d learned the language, the outdoor lifestyle was amazing, I wouldn’t have traded it for anything, and when I came back here I was miserable.
There is a lot of instability over there now which means I wouldn’t go back now, and tells me that being here is the best thing, but if I could have, then I would. And if I could go to Australia where the lifestyle is broadly similar then I would go in a heartbeat.
But it’s all down to personal choice. Just because it’s someone’s dream doesn’t mean it has to be yours.
Ignore the people saying things like they knew someone who went and the husband had an affair etc etc etc. Anyone can have an affair anywhere and the other partner could be left up shit creek.
If however your marriage is currently not in a good place then I would consider whether such a big move is the wisest idea at the moment.