I do feel it would be much better to have the maximum loan available to everyone. Then if wealthy parents want to help out, they can do so by helping to pay off the loans. Surely the only difference this would make is that everybody could afford to live, regardless of how much help they did or did not receive from parents. I, personally, would much rather be in student debt and be able to support myself whilst i focus on my studies, then struggle to do the work at uni because I have to work to afford a crappy, noisy, squalid flat in a bad area. Maybe London is just a no go unless you're getting parental aid...
As it stands currently, those who don't get a large loan or receive money from parents seem to be slightly screwed.