Here's the link re. the TV Programme.
"Britain's streets of debt : Whistleblower"
http://news.bbc.co.uk/1/hi/business/5029530.stm
...and another relevant link....
http://news.bbc.co.uk/1/hi/business/5009510.stm
I agree, that in the ideal world, everyone should have both the intelligence and maturity to realise what a credit card is all about, and act sensibly when using one.
However, in the real world, young people are not very worldly wise, and there are others of ALL age groups who don't have the degree of inteligence, or "nowse" to think about the implications of overspending.
Most people are swayed, to some degree, by slick salesmen or advertising. It is when the two meet, ie a "vulnerable" person being sold to by clever marketing or an efficient salesman, that the REAL trouble starts.
It would be interesting to see what the banks would do, if the Government made it a rule that any money lent that was deemed to be over an agreed formulaic limit, would be written off in the event of arrears, meaning that the lending bank would have to bear the loss.
eg....Mr Brown earns £15K and has outgoings of £12K. Government formula says that no more than £2K can be given as credit.
Bank agrees a limit of £6K on his credit card, which goes into arrears owing the full limit.
Mr Brown has to pay £2K, the bank loses the rest, as it is written off.
I bet the selling of credit would slow down a bit then, don't you?