Because nobody has any other reason to read.
LITTLE KID comes to SEK’s door to retrieve the basketball he launched onto SEK’s porch.
LITTLE KID: Hi. My basketball landed on your—WOW. You have so many books!
SEK: I know, I’m a tea—
LITTLE KID: ARE YOU A WIZARD?
SEK: Why else would I have so many books?
LITTLE KID: (turning around) MOM HE’S A WIZARD! I MET A WIZARD!
SEK: Let me get you your—
LITTLE KID: WIIIIIIZZZZZZAAAAAARRRRRRDDDDDD!