Waivers for High School Photography

dylansdigitals

I have recently started shooting high school photography. Do I need to get a release from everyone that I shoot that may end up on my website? I know a lot of the schools in the area offer some sort of photo release at the beginning of the year but I'm not sure of the specifics. Would it be worthwhile to find out what this says or should I some how write up a release of my own and have it available at the games?

Thanks:scratch