grannyactivist the people you describe, and I have worked with them, tend not to run up the huge sums of indebtedness quoted in the OP; £14,000 in all per debtor, They get into debt of necessity but the total indebtedness does not usually rise above a few thousand. - and £14,000 is the average so there will be many owing far more than that. And while that sum may include mortgage arrears (not exceptionally high at the moment)it does not seem to include the mortgage itself. We are talking about people with debts of £20,000 and more
There are many people whose comfortable life styles, cars, clothes, holidays are financed by credit card debt. You will probably not know if any friend, acquaintance or family member is running on debt like that. It is fine while they are in work and can service the debt but if times become hard and just one earner in the house becomes sick or is out of work, the whole edifice crumbles and you discover how they were financing their life style.
Despite the poverty among some families there are many families doing very nicely. I am not talking about rich people but middling people like those I saw on a recent reality programme about families and food budgets, some were spending £200 - £300 a week on food alone and seemed not that bothered. They worked as gas fitters and railwaymen and in the care sector or in shops. I did, as I watched them and their spending wonder how they could afford it. I think this report tells us how.