Why Is It Not More Predominant?

I have this theory that a lot of people have this idea that they don't like to read. And that's because they've never been able to choose what they get to read. I tell the story of Carl Sagan and how he hated calculus when he was in school. Like you think he fell in love with math and physics at an early age, but he hated calculus. In his book, he writes that calculus was invented by ill-meaning teachers for intimidation purposes.