Tarron's parents died when he was 16 years old, shortly after the birth of his sister, Tarron's only sibling. Given the large age difference between the two of them, Tarron has always felt a little like her father, and has done his best to make sure she has been looked after, although their aunt and uncle were a big help for the first few years after their parents died. Tarron has been wondering how a will might help him to look after his sister's educational needs. He recently developed a serious heart condition and has been thinking about his eventual mortality. What advice do you have for Tarron in this area