1. I guess it depends on what level, primary, secondary, tertiary. I have been out of the loop for a very long time (no school aged children) but I suspect like everywhere there is a pretty broad spectrum. But a blanket statement of "better" across the board might be a stretch.. Like everywhere public schools here are (i would suggest) chronically underfunded, places at selective public schools are highly sought, the and the top end private schools charge an arm and a leg (30k+ per year and up). As to University, do bear in mind that while Permanent Residents are eligible for a Commonwealth subsided place , they are no longer eligible for certain HECS-HELP type loans that are repaid through the tax system (university in Australia has not been free (or even cheap) since the early 1990s).. sitatuation is different for the TAFE sector (primarily vocational trade type training) as these are State funded
2.Just because crime in Australia does not make the US news that is not to say it does not exist. But yes, as a whole, Australia tends to be safer... few places you would feel uncomfortable walking alone late at night but they do exist
3. Definitely better workplace minimum conditions, 38 hour work week, 4 weeks annual leave, compulsory superannuation among a host of other nation wide employment minimum standards. But Australia is also significantly more expensive in many regards. In part because minimum wages are significantly higher, but also the tyranny of distance, and a relatively weak AUD, means the cost to get goods into Australia is significantly higher and generally competition in the market is limited, meaning there is less downward pressure on prices. Housing is hard to come by and expensive particularly the rental market is extremely tight. Median house-price in Sydney is over 1.5 Million, Melbourne its over a million and the larger other capital cities are not much below than that - median incomes are about 98k
Given you are talking about buying businesses here, and continuing to run ones in the US, don't forget to factor into the equation the fact that as a US will treat everything you do here as toxic. Those Oz franchises you set up will most likely be considered foreign controlled corporations which will up your US tax compliance issues, In the other direction, any 401(k) or IRA you hold will not be treated as foreign superannuation (because it is too easy to withdraw prior to retirement) and thus will be treated as ordinary investments. Similarly the way things like capital gains tax are treated here (50% of the gain is taxed at your marginal rate) can be problematic if you hold real property in the US. To cut a long story short, you will need to do your homework to make sure you do not paint yourself into a corner with your business income and if you remain employed by a US employer (even if it is a business you own) it will need to comply with Australian tax law (super, income tax withholding, potentially gst). Unlike the IRS, the ATO is quite well funded, and has significant data matching initiatives. I know several Americans who have gotten unexpected taps on the shoulder from the ATO "... based on your declared income... how are you paying for that car/mortgage etc ..."
But the million dollar question is... what visa out there do you think you are eligible that would allow you and your family to move permanently to Australia? Pretty much all of the Business Innovation and Investment visa categories are closed to new applicants. Which would fundamentally leave just the Skilled Independent and Skilled Sponsored visa classes.
In the intervening week.. what have you done to figure out if there is even a reasonable pathway..
how many points do you think you have from a skilled migration eligibility perspective?
what ANZSCO code does your work skills and experience fall into and is it eligible?
None of this is meant to scare you... more highlight some of the issues that most Americans who have never left the country fail to factor or consider.