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The banks in the UK have an unsolvable problem. They can’t run current accounts profitably for the mass majority. This means that the banks need to either sell the majority of their customers overdrafts and credit products and/or rely on customers running up penalty fees. This is because the banks have a huge cost-base and a huge and expensive technology legacy that they simply cannot change. This does not make the banks “bad companies”, though sometimes their behaviour has not helped that perception. It’s just that the banking model has evolved organically over the course of 300 years. As a result, and as more and more people need to use a service that was originally designed only for the very wealthy, the fault lines in the model become increasingly painfully obvious.