The offer is AAA unitarian, so as good as it gets.
No clear answers funny. I have to be cautious: the eldest four may well have achieveddespite rather than due to my input.
Once they can read I don't interfere. Certainly at secondary school it's all up to them. The minutiae of the Chemistry GCSE syllabus would confound me and bore me so I've never gone that deep. I'm better at A level, but only with the subjects I know. I do go to every parents' evening though, read all reports, that sort of thing.
Mine have not made Oxford a quest and never turned their mind to it until their GCSE's suggest that they might. I've made sure they know there are good alternatives, almost as pretty (they all knew already how lovely Oxford is as a place).
Any input is pretty oblique. I go to Blackwells sometimes and buy books, I suggest placements and projects. But it's the horse and water idea: they don't have to drink.
Ecs? They all do something but they've been constrained by too many siblings and a rural life, so nothing excessive in quantity or quality either.
They've certainly also been disadvantaged by a lack of space (shared rooms, communal homework table, noise and more noise). But advantaged by hybrid vigour (east/ west european blood) and by living slap bang next to a super-selective, by accident, not by design. Going to any other school within reach - private or comp - would have produced a different result, I'm almost certain of that. At the end of the day so much is just down to luck.