My mum and dad both from working class background.
Both fairly aspirational - they married young and dad did a trade and is very bright. Mum is aspirational but I guess old fashioned in that she expected dad to work and earn the money and move them up in the world.
She is a snob and always wanting to secure her place in the world / move up....but has heaped a load of pressure on my dad to provide this over the years.
Dad just wants a comfortable life. Mums more focused on the appearance of a comfortable life.
Dad is bright and would have been a good candidate for university, but just wasn't from that background. He is well respected in his field and he is interested in politics etc.
Mum, not so much. She reads a lot but just fiction. She is a bit ditzy, although does have an interest in history and we would go to NT places etc.
She was desperate for me to do well at school and go to uni etc. which I did, but then kind of floundered. She was also desperate for me to marry a doctor or lawyer or something but didn't. She makes it clear she disapproves in this regard constantly, even though DH earns well enough, it's not a profession she can boast about, and neither is my job, therefore she is resentful of that.
She disregards the fact that we are comfortable and have lovely kids and are providing them with a nice life.
I am trying to provide my kids with a more educated upbringing but it's hard. I was the first in my family to go to uni, so I'm hoping my kids will have more experience of that world. Not uni necessarily but other options other than just get a job and a wage.
My parents can't ski or play any instruments or sail or anything like that, and neither can I. I would love to give my kids these experiences.
To answer your question, the most educated family I know, parents now in their 70s, both doctors who gave up practicing medicine and the wife became an accomplished artist and the husband a mountaineer. Both highly respected in their fields and were published many places. House full of books and art. Kids who were by far the most intelligent kids I'd come across, with a real natural ability and thirst for knowledge, and very accomplished musicians.
All things that just weren't really prized in my upbringing. Having grown up in poverty my mum was so focused on money that she overlooked the richness of what else is available. Which I guess I can understand.
I don't know many hugely intelligent or successful people who didn't come from educated families. Obviously, these people do exist and major kudos to them, but I think having a childhood filled with all those things is an amazing gift to give a child.
I am university educated but I know nothing about art, I'm not musical, can't sail or ski....but we travel and we are doing our best.