I think you’ve summed it up nicely! (Long-time Brisbane resident here.)
One key other factor is the cost of housing. This will vary depending on your work situation / location. Current rental crisis (Vacancy rate well below 1%), perhaps not dissimilar to many other cities around the world; and the cost of housing in Australia is ridiculous by most global standards, although if you’re bringing wealth from a country like the USA the current exchange rate is in your favour.
I remember when it looked like kids weren’t going to happen for us (we eventually got lucky, she starts school next year). And my beautiful wife and I sat down and had the heart-to-heart conversation about what life would look like in this scenario.
I said, “I guess we’ll just have to be rich and happy travelling the world and sleeping in all the time.” That softened the blow somewhat…