According to the man, what is the importance of reading to children?

M: Daisy, do you think it’s important for children to read in their spare time?
W: I think there are a lot of reasons why it’s good for children to read, not just reading for pleasure.
M: Yes, as a matter of fact, all of the subjects involve some reading, even if it’s just art. They have to read the directions to do an art project.
W: The more they read, the more their vocabulary will expand, and the better they’ll do in their other subjects. It also improves their language tremendously.
M: But what is it good for children to read?
W: I think children should read everything, that, er, not just limit it to mystery books, or just to science fiction. I think they should read, er, from different areas.
M: You mean newspapers, magazines?
W: Well, not just that, but anything that’s written down. If he’s reading the back of the cereal box, while he’s eating breakfast, he’s still reading something.
M: That is a step to go on to further reading and if you limit it to certain areas, then that will, it sometimes, it will stifle them and they’ll stop reading completely.
W: That’s right. If a student wants to play games and he doesn’t know how to play, if he can’t read the instructions, then he won’t be able to play the game.