Tree13 I'm being more than courteous to you - I'm giving helpful advice that might save you from wrack and ruin, because you're on the edge of a dangerous precipice here, if you're seriously thinking about sending your kids to private school. Consider the following:
1 .The private schools will be rinsing you to the tune of ten grand plus, per kid, for little to negative material gain - if your kids are bright you will actually be inferiorising the currency of their qualifications, because every decent university knows the true value of an A from the private school sausage machine.
2.You will be endorsing, and participating, in a stinking Tory model of inequality that decimates social mobility in this country.
3. You need to sleep at night.
How do you resolve 1 and 2 so you can do 3? If you're a nasty person, you don't. But for a decent person like you it is necessary to construct this fantasy about a failing state sector that 'lacks rigour' and can't supply students to enrol in postgraduate courses [LOL at this - what are you even talking about with this bobbins?]. You'd be failing your kids if you subjected them to this nightmare education scenario, so of course tens of thousands of pounds is money well spent.
You have to recognise that this is all just delusion - perhaps sparked by some sub-optimal state school experiences of your own, but rocket-fuelled by the private school industry to drain your wallet.