I come from a very similar background to you but with fewer siblings around my age (there’s 5 of us in total but across 3 decades). My mum read to me and encouraged my interests through the library and free museums but didn’t help with homework or go to parents evenings/careers events/etc.
I I left home at 16 and worked in some awful minimum wage jobs but also went to college and did a vocational degree. I worked my way up from the bottom of the public sector and now have a well paid civil service job. Equally, my husband did an v academic degree at a better uni and now earns a very good wage in tech, despite studying nothing related to his field.
I think the key is mindset and opportunity. I’ve always worked really hard, I’m very curious and love to learn, and I grab every opportunity I get with both hands. I read a lot still in my spare time, mainly around politics and social policy which comes in handy for the civil service!
My focus for our child will be on pursuing your interests, working hard and having a growth mindset. I guest lecture, and provide guidance/work experience for colleague’s children, and my advice for them is always to try every opportunity or idea for a career, see failure as a way to cross something off the list/identify an area for development, and to be open minded.
Being comfortable is more realistic than loaded. We own our home, don’t worry about paying for essentials, drive a relatively new car, go on lovely holidays and still find it easy to save - that for me is enough. Financial literacy and impulse control are key for being comfortable so we practice that a lot in our life and hope our child will learn from modelled behaviour.
I also think working part time from 16 in a service role is important to know the value of money and be humbled! Some of my friends think this is bonkers but I stand by it 😂