There was a time when there were not many universities - 50 years ago perhaps. Yes, that sounds like a long time ago but you have to look at our handwriting and spelling, punctuation etc and you will know when and where we were educated. Having said that, I will also include those who attended secondary modern schools. Teaching then was different and those pupils could also spell, punctuate and construct a sentence.
A student's parents could apply for a grant towards financing the course at university but it was not necessary to have a degree to get a good job in those days. (I've been there). Some parents of academic children did not 'believe' in universities because they had got jobs themselves at age 14 and paid their way in life. They did not realise what universities could bring to their children because they had no conception of what universities really were.
Several of my friends attended grammar schools (Tiffins, Mitcham Girls' Grammar, Wimbledon High etc) and achieved enough to go to work straightaway in jobs that required just a brain and paid a decent amount of money. My parents could not believe the amount that I was contributing towards housekeeping expenses. We all went on to succeed in well paid jobs and, now in our 60s and 70s, we have a good background and could still work if we wanted to and were accepted in today's business society. It's such a pity that life is not like that any more because we have too many universities and (let's face it) sub-universities.
One of my friends left a secondary modern school and went on to be a competent hairdresser. She is still working (nearly 70) because she likes it but also because her clients like to have her.
Yes, there's too much one size fits all. All pupils are different (they are not 'students' until they are at college or university). When we had the 11+ examination, some passed and went on to other schools and some 'failed' but had another chance at 13 to change schools with a 13+ examination. It was not an unfair system because those who did not attend grammar school with an academic ethos, attended a secondary modern or technical school (yes there was another choice) and could succeed in other ways. I remember a prefect telling me that she was going to be a stenographer (shorthand typist). To work in an office in those days was a plus point. I admired her.
Bring those days back. My mother in law left school at 14 (in classes of 50+) and one could not fault her spelling, punctuiation and sentence construction.