This is a terrible understanding of what universities actually do. They are not school, and academics are not school teachers spoonfeeding children. Sitting in class is only a small part of what students do and the resources they have access to.
For £9.25k they get taught by experts in the field - large classes for lectures and 15-30 in seminars and workshops), access to top of the range, latest versions, of relevant software (for example, if a student had to buy SPSS (a standard social science stats package) it would cost them £1100 a year alone, not to mention all the other specialist software they use at hundreds of pounds each), access to up to date, relevant research databases and well stocked libraries, employment and enterprise services, mental health services, computing space, group working spaces, etc. They pay for timetabling and rooming, exams and essay marking, dissertation supervision, working/studying abroad opportunities, etc.
They get massively subsidized gym membership in what are often state of the art gyms, classes, and competitive teams. They get access to a huge variety of clubs and societies (over 150 where my DD is going), a students union to meet friends, do coursework, and relax. They also get access to extracurricular lectures by prominent people including politicians, business people, and people eminent in their professions.
Larger universities often employ 4-5 thousand people in teaching and research, enterprise, HR, finance, business liaison (so young Tarquin can get a plum job at JP Morgan).
Universities are big ecosystems that benefit students, staff, and the local and wider community and economy. It is up to the student to take advantage of everything their institution has to offer - and it is a lot. A degree classification on a piece of paper represents only a small part of their education. In spite of massive increase in costs, fees have not increased for years, and at £9,250a year it is half the price of independent school, and is quite a bargain.