I am just playing devil's advocate here, don't really have an opinion one way or another. But I am wondering, if a deli or grocery store required their cashiers to sign a non compete or something similiar, who would work for them? Who would take a job knowing that for a certain amount or time or in a certain proximity, they could not work for another grocery store?
I don't think it would hold up and I doubt anyone would sign it. When you hire a new teacher, they dont know if they will like you, or you will like them , or if the work relationship would work out so why would they sign something on day one that would limit their future employment rights?