By City AM reporter Re: More than £1trn languishing in low-interest savings accounts I’ve always struggled to understand why kids in the UK don’t learn about managing their finances at school.A lack of financial education means lots of millennials have had a long-term, one sided relationship with their bank. They’ve grown up to believe that the right thing to do is to put your money into a big bank, and rarely shop around. Meanwhile, the big banks are rubbing their hands with glee at the amazing customer loyalty they’ve received without really having to do much at all. Our analysis of recent B…