These teachers look different

I recently started substitute teaching in a new district. When I walked into one of their schools for the first time, what did I see? These teachers look nothing like _____ school district. In ___ district, often I will encounter 2 or 3 teachers who are obese or overweight. But in this new district, half the staff are shaped like me! Half the staff are fat!

So, why haven't I been offered a job in ______ district?