There is more pressure on Oxbridge to have widening participation than on other universities including RG partly because they're more under scrutiny.
Sorry, didn't mean to be dismissive thebest, but I think there is an undue importance attached to entrance to RG universities and Oxbridge. They represent only 20 universities so for every one person that gets in there will always be a huge amount of unhappy rejects. There is no way of avoiding that situation even if ALL the entrants came from state schools.
And I think there's no difference at all to your life chances in having gone to a RG university like Manchester compared to a good university like York or Durham ( I know they're joining the RG this year anyway).
I also think it's too easy to blame teachers, careers advisers, schools and LEAs for lack of widening participation instead of the institutions and systems and social structures which are actually the problem.
In fact, there is a huge amount of advice very easily accessible to students not least on the Internet and you've really got to wonder if a RG university is the right choice if a student lacks the initiative to access it.
What is less easy to access and insidious is the unspoken rules (i.e. the snob factor) and even those in the know have to be very careful about how to diseminate this information in a way that doesn't simply reinforce the prejudices.
Take my example of the student who wants to pursue law as a career and wants to do Law A Level. What if you work in a school or college which offers Law A Level? It really is tricky. If it's a student with a C/D profile you could argue it doesn't matter that much as that student is unlikely to make it into that profession anyway (but in that case maybe it's not in their interest to do Law at A Level?). If it's a student with a string of A* and As how do you tactfully explain that it may not be the best choice without incurring the wrath of your colleagues?
And, as I say, it's counter-intuitive anyway, why shouldn't Law at A Level be good preparation for a career in law?