The sorts of things which might be done here are very intrusive prudential supervision and various rules (or at least monitoring) on all those who borrow overseas, if only to try to put some “sand in the wheels”. Chilean-style capital inflow controls might also be a possibility.
By contrast, the supermarkets are where people see price rises happening, and the government is responsible for capping energy prices. Savings and investment opportunities are provided by one's bank or online broker. And individuals who are saddled with too much debt can turn to a consumer organisation for help.