Just a thought here - we could live (incl paying mortgage, council tax) on £18000 a year (DH's wage), and still have some quality of life. We're a family with one child.
If we want more than one, that wouldn't really be enough. Now I would like two, but even though I'm in a professional job, childcare would be £200 per month more than my wage if I put two children in nursery. So we'd be worse off as a family until at least one child went to school.
So as a working family, having a child COSTS us money, ESPECIALLY if we both work. We have to choose carefully whether we can afford that, as we cannot simply work more to earn the extra due to the extortionate cost of childcare.
I have seen families living on benefits and how little spare cash there is. It's not a nice life. It's no better if you work minimum wage jobs though. And if you don't turn up at work for a day because your child is in hospital, you won't get paid in ANY job. If your child is in hospital for a few weeks, you won't get paid for those weeks. Sick pay is pretty rubbish too.
I would never begrudge others enough money on which to live. The greatest expenditure any government makes is health, education and pensions anyway, something all of us get. I don't understand why everyone seems not to get that there are WORKING parents who cannot afford a bed for their children, who cannot afford dinner for the adults, who cannot have an extra child because it won't work financially. It is those parents that are thinking 'hey, wait a minute, she gets to have six kids and manage to feed/clothe/house them on her benefits.' 'I couldn't do that on my salary...'