And I'm not at all sure it's culture-neutral, hmmmm?
Okay, I had parents who had books in the house and read to me and once I could read took me to the local library to get tickets for the children's department.
No children's museums that I recall but visiting the rather dull local one attached to the public library, and visits to local sites of historical interest.
My primary school was not, I think, particularly distinguished - suspect that the year there were a whole four of us passed the 11+ was Memorable - but there were some good teachers.
I don't know how one calibrates into all this my mother knowing the teacher of Infants 1 and asking her about whether I could go to school once I had turned 5 (having an autumn birthday) and her saying, oh, send her along, on account of my mother thinking I was entirely ready.
And then the Head saying I should do the 11+ technically a year early - (which was not a given, people did get kept back)
Going to a fairly academically-intense girls' grammar school, where I did get the odd spot of class-hassle, I realise in retrospect (including from horrid Mrs B of the really weird ideas about sex), where I was marked out as university material and my parents exhorted to keep me on the sixth form -
Which they were entirely happy to do.
So yes, I was I suppose supported on my academic journey. But some of that was external factors, like the existence of that extinct phoenix, full student grants.