Wanting to give dd (year 7) a bit more independence when she boards. Anyone with any experience of bank accounts for this age group? Ideally looking for a card she can use in the wall & online shopping (mainly for buying books for her ereader) with a very low amount in it & no way of going overdrawn! Does something like this exist? & how realistic is it to do this for an 11 year old? Am I mad for even considering it?