The most important right that you have as a parent is the right to keep your child completely safe by removing them from school in case of emergencies. At times teachers and administration do not do what it takes to keep your child safe while you have trusted the state with educating them. Below is a link to the Department of Educations regulations regarding homeschooling your child. And there isn’t any. See for your self! You do not have to keep your child enrolled in a school that you do not trust.
https://dese.mo.gov/governmental-affairs/home-schooling