Repayments are 9% of anything you earn over £25,000. A graduate earning £31,000 per year pays back £45 per month. ( Can't see that having a major impact on affordability)
And a graduate earning £31k has a snowball's hope in hell of affording a house in many areas of the country. They will always be renters if they live in affluent areas, and they will never build up wealth to boost their children's chances. If they buy, it will be in less affluent areas. Their children will go to poor quality schools because they live in poor areas. Their peers will more likely than not be students from families who do not aim to go to third level education or become financially self sufficient.
How does this contribute to social mobility?
Are you content to see students head off to poorly regarded third level institutions to do mickey mouse degrees financed by 'something that is not a loan' and earn less than what they could be earning as bricklayers/plumbers/electricians? By the time someone has done their paid apprenticeship in any of these trades they are well ahead of students who have spent three or four years absorbing the 'student experience' at such cost to taxpayers (i.e. themselves and their families and everyone else who pays tax).
According to data from the Office for National Statistics, the average electrician salary in the UK is £30,765 per year. Electricians are closely followed by plumbers, who earn an average of £29,136, and carpenters who can expect to bring home £25,729 every year. Bricklayers and tilers earn an average of £25,098, whereas plasterers take home £23,529 per annum.
www.tradesmansaver.co.uk/knowledgehub/what-are-tradesman-pay-rates
I am assuming the average reflects regional variations and also experience/specialty variations.
www.simplybusiness.co.uk/knowledge/articles/2018/03/uk-tradesmen-earn-more-than-univeristy-graduates/
This report claims incomes in some trades and regions are far higher than incomes for some university graduates.
www.payscale.com/research/UK/Job=Personal_Trainer/Salary
Personal trainer average income - £19,498. You could go to a university and get a degree that leads to this area of employment and this sort of income expectation. Or you could become a plumber...
For those students who are flipping a coin, and if the word debt really is offputting, then I would say forget the local cheaper university and become a plumber.
Are there people snobbish enough to turn up their noses at the trade route to wealth and stability? Are there really people who think a degree in Sports Somethingorother is going to give them a leg up to anything? Any snobbery here is on the part of those who see any university degree at all as better than alternatives for school leavers.