I know, believe me I know, that it's very expensive, but it's a cost of having children, like food, clothes, somewhere suitable to live and any activities you might want them to do. It shouldn't come as a surprise to anyone.
I worked for "nothing" for years but considered it an investment in all our futures - we're much better off now for having done that then, than we would have been if I'd given up work was now trying to find work after years out of the workforce.
So, apart from it being a vote winner, why should the tax payer fund it when it was all for my and my family's benefit?