@DottyHarmer
Frankly I think it should be backdated. I know someone who has a degree and MA and will intentionally never work. So nothing to pay back - ever. At least the fees should be collected from estates when people die in the distant future. Plenty of people earn just under the threshold for repayment too.
Sadly if you have near-on 50% of young people going to university, this is what happens. And, as usual, it will be the schmucks in the middle who suffer - the middle earners
I care less about “silly” degrees which are actually vocational; I object to people studying English at a place that until five minutes ago was a HE college. I can’t remember the place but it was in the news that at just such an establishment the students were studying Harry Potter and The Hunger Games. That is a disgrace; it is Year 6 level.
So you're in favour of the terms of financial agreements being changed in retrospect, without any input? Presumably that means you'd be fine with your mortgage interest rates suddenly tripling despite signing up to a fixed rate, or your electricity supplier saying you now have to pay the year in advance or you'll get cut off?
As other posters have pointed out, studying English Lit at degree level isn't like writing a book report aged 10 
My issue with student loans is that tuition and maintenance loans are all bundled up together. We can debate forever about the value of various subjects, but ultimately 3x£9k, while expensive, is probably something most people who get a fairly good job after graduating, will either pay off, or come very close to, after 30 years in work, even with interest.
The people with £50k loans are the ones with full maintenance loans too, which is fully understandable because otherwise how can they make ends meet. In some countries in Europe more students tend to study at their local universities rather than moving away. I do see a bit of a problem with these loans never paid off, just because I don't think how it's fair that Jayden doing an apprentice who has to leave home aged 19 because his CB has stopped and there's no room for him, or Chantelle the 18 year old care leaver, have to pay their own way in rent/food etc from such a young age, out of their low wages/minimal benefits, whereas Jocasta and Jonty can have a 3 year loan to pay for theirs, which if they only get a low paid job because they marry well/become a SAHP/retire early because of a good inheritance from mummy and daddy (or grandparents), they never have to pay off.