Because you&#x27;re not a manufacturer.<p>Think of school kids.  Because you can&#x27;t learn without an ipad, and a classroom of kids watching youtube cartoons instead of learning need earphones or earbuds or they&#x27;ll all go crazy.<p>Now instead of selling $5 earbuds that last 3 months until they break or are lost, they parents will shell out $20 every 3 months.  Also when the jack is ruined by kids yanking on it, instead of having a 99% usable ipad they&#x27;ll have an unchargable ipad, leading to even more sales.