Never happened to me in 20 years of raising 3 kids in Logan/Brisbane. Can't recall less than 3 or so hours waiting. I have certainly arrived in the evening and seen daylight before being seen on a couple of occasions.
American Health isn't more expensive than Australia, I believe the Oz lower class median is actually more expensive, but they do however have insurance packages that can be astronomical in price that people get the hard sell on; "What, you don't love your children??" - but that's your choice to sign or not.
My Mate isn't wealthy by any strecth, respected 'Detroit car industry' historian, now runs a classic car website and was best known as "Detroit Editor" of the famous American "Hot Rod" magazine for a while.
http://www.macsmotorcitygarage.com/
You're welcome to your opinion.
At the end of the day many places have their advantages and disadvantages that generally balance out and I prefer to live in China not because it's "better", it's not, and it's certainly not "worse" either, but that it's advantages happen to suit my career and lifestyle.