"But we can use this example. Instead of credit cards, a better comparison is with buying a house."
OK let's go with the comparison.
Looking at a families spending pattern you'll see that most of the time they spend less than they earn. Then, occasionally, you'll see a big spike in spending which outstrips the earnings as a house is bought or perhaps an expensive car.
The Government has had the other pattern.
Very occasionally there's a brief spell when they live within their means, for the vast majority of the time they're funding their spending with loans, putting it on the credit card as it were.
"You manage your finances so that you can afford to pay the interest and the loan. This is what the government did"
That is what the Government did not do. For most of the time it could not afford to pay the interest and meet it's other obligations without having to resort to taking out yet another loan to cover it.
"it invested in the country, in infrastructure, education, health, etc."
When are those investments going to pay off?
Pretty much every Government since WW2 has spent more than it's earned, adding to the debt mountain, and we haven't seen a return on that.
And right now 25% of Government spending is borrowed money. Are you seriously suggesting that that 25% is all investment? Much more likely it's being borrowed to pay the bills and just scrape by. And it should be pretty clear that using credit to pay day-to-day bills is grossly irresponsible.
"Would you still ask the other children to sell their cars, or would you ask the child you bailed out to help you pay off the debt himself?"
What has happened with the bankers is more akin to a couple retiring and having made no financial plans, having spent their life spending more than they earn, now expecting their children to support them.
One of those children, the banker, seemed to be doing especially well. So the rules were changes to let him do even better. And then when the other children seemed to be struggling the parents said, "well we don't need you, the banker will support us." And still the parents keep spending more than they receive and the debt gets higher and higher.
And then the banker blows it. He's the only child of the family that's really making any money. If he goes bankrupt then the entire family is at risk and there won't be any money coming in. The family has become reliant on one child alone.
So the child has to be bailed out and put back on their feet because the consequences of doing otherwise are just too severe to contemplate.
Of course what should have happened was that child was given some strict conditions, but that didn't happen.
The parents should also never have become so reliant on that one child that they couldn't survive without the money coming from them.
The parents should have encouraged their other children to do diverse things so that one could be allowed to fail if they messed it up.
And when the years were good the parents should have been saving money and not continually borrowing more and more and more.
If you can't keep your head above water and survive on your income in the good years what hope do you possibly have in the bad?
And as to paying off the debt well if that child turns around and says "I am not responsible for your financial mismanagement, I paid you plenty of money for years, why did you keep overspending?" then who can blame them.
If the Government had lived within it's means, if it had made provisions during the good years, if it had a diverse range of industries in the country and if it hadn't become so used to living a lifestyle funded by debt then this country would be in a far better state.
And I'm not blaming Labour for this, the previous Conservative Government was even worse when it came to balancing the books.
The debt has been allow to balloon for years with every Government thinking that some other Government in the future would sort it out.
That time appears to have finally come.