Matt Crawford speaks with author Sonja Williams about her book, A Kid's Guide to Life Choices. When should we start to think about financial planning and even retirement? In our teens is the best time and William's book lays out key points for our teens to really latch on to. I learned so much from this book and discovered conversations I wish I had with my parents when I was younger. Easily accessible and a book I feel we should read along with our kids.