It definitely depends on your district, your school, your teacher. Our district actually does a good job with reading - aside from in-class alphabet review, the kids' reading is honestly assessed. I know kids who were allowed to read their Harry Potter in kindergarten. Their 'just-right' rule is for the kid to read a page, and hold up a finger for every word they struggle with reading or understanding. 2-3 fingers is just-right, 5 fingers is too hard.