"...and qualifications were key.
My dh is in senior management, and he says exactly the same."
Bizarrely, my husband is in very senior management too, running his own business, and just last night he said exactly the opposite! He has lots of people applying for a senior job he is interviewing for atm, but although they have all the right bits of paper, they are just lacking a certain something.
The problem with a national education system is that because it has to cover the whole country, it goes for a 'one size fits all' approach. Some people thrive on it, others don't. My brother left school with no qualifications, has had a fabulous life so far, and earns a proper lot of money. I went to a very poor school, eventually went to university, but ended up in a profession which does not require any qualifications that can be obtained through state-funded education. It also happens to be one of the highest paid professions in the UK.
So seeing where life can lead you, I believe that the most important aspect of a childhood is not the education, but the childhood itself. My DD's school is always going on about how an education is a once in a lifetime opportunity, well they are wrong. A childhood is a once in a lifetime opportunity. Plenty of people feel their education was somehow not right the first time round and go for another one as an adult, (me included.) But no matter how much you try to recreate it, you will never get back that sense of wonder you had as a child. I take my kids out of school because I believe I can help that sense of wonder, show them things they might not otherwise see and take them places they might not otherwise go. So shoot me.