Some of this resonates with me, I was born 1979. I My parents were older, late 30s, having me then my brother. They both left school at 14 in the 50s and went into low paid jobs.
They had no input at all into gcse choices, or uni they wouldnt have had a clue to be fair to them. They were very keen on education though, my mum especially, and was constantly warning about working hatd so I wouldnt end up in a low paid job. Tge best thing they did was talk about uni like it was viable option and I'm greatful to them for that.
But it was up to me to bring that about. So I was expected to do well as school but they didnt really do anything, it was up to me.
From age 9/10 I'd be doing homework late on a Sunday night in front of the TV, and mum might ask why hadnt I done it before now but that was all. Never read over it and werent able to help with any questions. I was a lazy kid and could have done with a bit more pushing on school work.
I did feel parented though as a teen and I wasnt left to my own devices however parents were very judgy and my mother especially was very negative anxious person who catastrophised everything. It was easier to stay at home watching TV than go anywhere and honestly thats what most of my childhood and teens was spent doing. I realise now she was very anxious person. She made me afraid of everything and any new experience, anything different I wanted to do, places I wanted to go would be picked apart for all the things that could go wrong. Endless, endless negativity, never going anywhere or doing anything. Never went on holiday, no cinema, never went swimming, Occasional days out but generally same places year on year and never far from home. I had no clue how to behave in social situations and had no guidance on anything. Their judging and horrendously old fashioned attitudes meant I couldnt talk at all to them about much of anything.
My parents biggest concern was other people's opinions so as long as I didnt get up to anything that caused 'talk' then they were pretty relaxed parents, wanted to know who I was out with, where going and how was I getting home.
I was pretty badly bullied as a kid(chubby introvert nerd) so gave them little trouble, didnt rebel and spent most of my teens in my room. I had zero confidence and they would have had no idea whatsoever to do about that or even realised they should try.
Mum stopped working when she got married and when I was a teen she'd rant about how she was just a skivvy but then she'd get irritated and angry if I tried to cook for myself/do my laundry/change my bed and tell me not to meddle so I couldnt win. I left for uni unable to cook and having never washed my own clothes.
My brother and I have talked about it a few times since and we both agree that we didnt really learn about the world until we left for uni and learnt from our peers there who were just so much more independent and capable than we were.