Before she was 2 years old, my granddaughter Katie did something that would make any grandpa proud: She began to recognize cars by make and year. This all started when she and her daddy began spending time together playing with his old collection of toy cars. Daddy would say, “Katie, get the 1957 Chevy,” and she would pick it out of the hundreds of tiny cars. And once, while he was reading a Curious George book to her, she climbed down from his lap and ran to get a miniature Rolls Royce—an exact replica of the car pictured in the book.