I don't think a polarised education system is a particularly negative thing. Further, it would be ridiculously difficult to convice a parent from a relatively higher socio-economic status (who can afford private education) who wants their child to have the most opportunities possible available to them, otherwise. At least without some compelling evidence...
I think it's honestly part of the whole mythos around it that another user commented on. Is the education really much better? Do we have much evidence to support this? Or is it just a false notion that the education is better?
Their study scores are higher but let us not forget that these children come from wealthy homes. They get better nutrition, better care, can afford all their textbooks and uniforms (+private tuition), better gadgets, home is likely to be more stable, the whole shebang. If you look at the ATAR data, high socioeconomic status is highly correlated with high ATAR. It seems irregardless of what school they go to (or the difference smooths out in the mean). I believe socioeconomic disadvantage, not somehow teachers which are massively more inept, are the roots of the discrepancy.
My old school (catholic regional college) recieved something like $5,000,000 in government handouts during the education revolution under Rudd. It's not a posh school, a lot of people there were from the lowest SES bracket. They just wanted the catholic and independant school vote (its soley a year 11/12 only campus and services ~1000 VCE students). We got new labs, a bakery, a theatre, a restaurant, picture framing workshop. Many of the teachers have more than one degree (plenty of masters) and yet, we don't do any better than the public school not too far away. I'm convinced due to this that more money doesn't equal better outcomes, especially when students are building off a life of disadvantage, home problems and other things.
I haven't checked but hell, i'm confident to say your average public school in a rich area does much better than a public school say in St.Albans or Frankston.
Put kid A in a $10000 p/a private school and they'll have more opportunities than kid B who went to the local high school. Put kid A in a local high school and use $9500 each year to further invest in their future through other means and they'll have more opportunities than kid B. But if had the opportunity to provide your child both, why not?
I don't think parents should felt like they're held hostage, you need to spend a lot on education or your child would end up a failure. It's no secret ATARNotes is mainly inhabited by those from a privileged background or from private/selective schools. Despite this fact, we have many people who have came from shitty schools and reached the heights of success, there are one or two in this thread even. You don't need to spend a lot of money to do well. It's part of the reason ATARNotes was created. It's the same exploitative action preying on parents best instincts behind certain expensive UMAT preparatory programmes or certain tuition schools, they're vultures.
Don't get me wrong, i have zero care about what the rich and privileged burn their money on, they could put it in a wheelbarrow and set it on fire for all i care. I just dislike the false misconceptions surrounding these schools and with it the idea that a high ATAR score or becoming a doctor or lawer is the only successful measure of the totality of a child's education and school experience.
Bonus graphs!



