Bullying on the basis of actual or perceived race, color, religion, sex, national origin, ancestry, age, marital status, physical or mental disability, military status, sexual orientation, gender-related identity or expression, unfavorable discharge from military service, association with a person or group with one or more of the aforementioned actual or perceived characteristics, or any other distinguishing characteristic is prohibited in all school districts, charter schools, and non-public, non-sectarian elementary and secondary schools.