Blimey, this discussion is still going on. It's very interesting, though.
L1ttledrummergirl, student finance it's much more complicated and bizarre than you say it is. Very few people can predict at birth what their earnings will be when their children reach university age. They can't predict whether they will become seriously ill, or whether they will die, or win the lottery, or get made redundant, or end up with several promotions. Life is not that predictable.
You say Regarding the parent whose financial situation changed- student finance will adjust if they are contacted
Good luck with that one. Contacting Student Finance England is on a par with contacting HMRC, and when you actually manage to speak to someone, the answer is so complicated that they don't understand it themselves. I have a doctorate, by the way, so am not totally thick.
Student finance is absolutely fucked now, and it is the direct result of too many young people going to university. It ought to be entirely on merit, and those who are bright enough to get there (regardless of background and regardless of whether their parents be unemployed or millionaires) ought to get a free shot at it. There ought to be real, viable, properly funded alternative paths for young people who aren't the highest academic flyers.
As it is, there is a massive lump of 'university students', which includes every course at every university, from the best to the worst. It includes students with 4 or 5 A*s and students with a couple of Ds. Yet they are all lumped together and regarded as dependent on their parents (and/or any unrelated adult who happens to be their parent's new live-in partner) unless their parents can prove otherwise - at the very moment that they leave home.
It is also ridiculous that my children have had full maintenance loans because my income is so low - because I am divorced and they live with me. I am not objecting, as I couldn't afford to support them, but their father could, and his income is not included in the calculations because he isn't the resident parent. Whereas if I had a relatively new live-in partner, his income would be included in the SFE calculations, even though my children are adults and would never have been this imaginary partner's financial responsibility. It is completely insane.
The people who are truly fucked are the £20-40k brigade, who can't possibly fund their children through university, but are expected to do precisely this. That is the real injustice, as their children are the ones who end up doing worse academically because they're also working to pay for their food and rent, rather than for a bit of extra beer money. That is more of an injustice than whether children have been to state or private schools.