@AskMeMore, people were able to find things out before the internet, you know. We went to libraries, we browsed in bookshops, we read the papers, watched TV, listened to the radio, we asked authority figures who might know, e.g. teachers, librarians, we went to the Citizens' Advice Bureau, we picked up leaflets in public places. It really wasn't difficult to find out how the student financing system worked.
I'm sorry for those whose parents stood in their way or didn't encourage them. My parents were overjoyed that my brother and I could go to university and very generously made up our maintenance grants to the full amount (their combined earnings as a teacher and a retail manager, although not that high, were just high enough that we didn't get a full grant). They were both easily bright enough to have gone, but in their day the only people who went to university were those whose families could pay and a tiny handful of exceptionally able school leavers who won scholarships. My mother did make it to teacher training college, but only because the baby boom led to a huge shortage of teachers and financial incentives were put in place to get as many teachers trained as possible in short order.
I see from a brief scan of Wikipedia that Charles Spencer went to Eton and Oxford, but none of his sisters went to university, even though at least one had A levels. Odd. Diana was the same age as me. Maybe I was very lucky, but I knew nobody growing up who thought girls should not get the same educational opportunities as boys. Maybe it was different in the aristocracy.