At the end of the day, unless one parent has actually died, children have two parents, whether those parents are still together or now. You can split up from a partner, but you don't divorce your children. Of course it should primarily be the parents who pay for the children they're created, not 'the government' - which in reality means taxpayers, often strapped for cash parents themselves who are struggling to pay for the children they chose to have themselves.
Ok so in my case, my children's father isn't dead. He left when they were babies, though. And was then arrested for such awful crimes that he can never, ever see them again.
We were married for years before having children. He had a successful career, good income, was very stable, so it seemed. No red flags. Even a close friend in this area of policing who knew him well had no idea, no bad feeling about him. Nobody did.
So short of a crystal ball please do tell me how I should have foreseen him walking out on two babies? And why I should be taxed more than other households with the same income as me even though I am just one person with only 24 hours per day to do all earning and childcare?
This is the problem: there is still this pervasive attitude that single mothers must deserve it. You must just be an idiot, have married someone who was appalling when someone smarter like them would have magically known somehow what would happen.
You don't. You can't. It could happen to anybody. And to actively penalise the decent parent who sticks around and does everything and deep down still hold these prejudiced views that "oh well, that would never happen to me", "it must just be poor judgement on their part", "I'm sure they brought it on themselves" etc, is so, so wrong. I hope (and I mean this genuinely) that you don't one day find out for yourself how wrong those prejudices are.