The other day Elaine took a picture of our soon to be three-year-old grandson and me while I was reading to him. I don't remember the particular story I was reading to him, but Sam knew most of the words. So when I would pause, he would complete the rest of the sentence, no doubt having heard the tale many times from his parents and grandparents.
As a retired elementary school teacher, Elaine feels that Sam's vocabulary is very good for his age, and I agree. As a high school English teacher, I see students who don't like reading, and when I talk with these young folks, I often learn that no one read to them when they were young. That is a mistake that parents shouldn't make and an activity that is so easy to do.
Sam knows all the characters in his Thomas the Train books, and he can talk endlessly about their virtues and flaws. Every night before bedtime, his parents read to him, just like my mom did for me when I was little. A lifelong love for reading can begin at a very young age.