I don't have an answer, it's something I am pondering myself at the moment. Things I have considered:
There are a whole load more too, but these are the big ones that go through my mind and might be good discussion topics.
- Is the private school itself better, or is it selection bias in that the parents who send children to private school focus more on their child's education than (some not all) parents who send their children to state schools.
- As above, private schools can choose what exams are entered so is there some selection bias in the stats?
- Anecdotally the privately educated people I know tend to be more confident (even when wrong) and better at things like presentations. Are all these traits desirable, and are there other ways to achieve these?
- The cost isn't just the fees, remember there will be kit, extra classes like music etc, sports and trips. Can you afford all these too?
- Is it better to be the poorest kid in private school, or be at least average in a state school?
- Could the money be better spent on other things, extra tuition etc,
- Even non-academic items like holidays help children develop, through experiences, do you think it is worth giving up these?
- What age does the benefit come, eg is it worth state school up to a certain age and then private.
Not saying private schools are bad, but just to back up the second point I made previously, it was a front-page news item today that some private schools are entering weaker pupils as external exam candidates to avoid their league table stats being negatively impacted. Although this news story is about private schools, I'm sure this happens in all types of schools, private or state, so the main takeaway is to do your research and don't be blinded by the marketing.