I've been lurking here for months, but this has finally made me post.
Daft bint - we did all of that: took our 2 little darlings out of their tiny weeny cosy private school and stuck them in the local state primary when they were 6 and 8 and I'm very glad we did. Not only have we saved ourselves a fortune but they have learnt to mix with all sorts of different people, which they certainly didn't in their private school. The eldest took more than 2 years to settle in and make friends, but it has strengthened her character and made her stand up for herself. We had tears and tantrums, bed-wetting, calls from the school about the fact that she didn't fit in and wanted to sit in the library reading at breaktimes because she had no friends, but now in Year 6 she is Little Miss Popular and loving it. As for mental maths, they are both doing extremely well in every subject and I cannot praise the dedication of the teachers enough. It's not a particularly good school, with a wide mix of people from different backgrounds and cultures, but they do their best in often challenging circumstances.
Having said all that, I confess that we are going for a private secondary, but only because the state options in our borough are crap and Little Darling 1 failed to get into the selective school in the next borough an hour away and we think she deserves the chance.
And yes, I work full time, no cleaner, no au pair, and we are all very happy, thank you very much. Cleaning the floor at 5am? Only if the MIL is coming to stay! Why can't she spend half an hour in the evening, when the kids are in bed, having a quick wipe round like the rest of us? I have people like Shona Mrs Hoity Toity Sibary, but perhaps I'm just jealous?! 