Making reading attractive to all kids, whatever their interests, has always been important to me, and I know I'm far from alone. You like pictures better than words? Here, have a graphic novel. Your favorite characters are the ones you know from TV and movies? Here are some books about them. Potty humor is what gets your attention? That's cool, too. Here's Sir Fartsalot Hunts the Booger. Maybe if this one hooks you, you'll find yourself pulling more books off the shelf.
This is a basic question, but why? Why is it so important to hook kids, practically even trick them, into reading? Why is reading so great that I want everyone to do it? There are practical reasons, of course; I'm a children's bookseller and a writer, after all. But I wouldn't be in this business if it weren't genuinely important to me to help kids want to read, and I don't think my passion stems entirely from a hope that they'll be able to read textbooks and then road signs (though both are unquestionably important).
I interrogated myself about this. I asked myself what picture is in the back of my mind as the ultimate goal. To my relief, I found that the picture was of a kid having the same kind of reading experience I have with the best of books: that personal experience where it feels like I'm the only one being let into the characters' world.
If it takes a little potty humor to get kids there, then bring on the poopoo jokes.