Why are some grades not offered on the application for all schools?

There are two main reasons a grade is not offered on the application:

The school does not offer that grade. Some of our schools stop at 5th grade, but for every one of those schools, there is a middle school and high school that the 5th graders automatically progress into for middle school. Additionally, some newer schools may not have all grades offered yet. Also, a few of our schools do not offer Pre-K.