I think this is just the reaction of how people think money is more important then anything else!!! If you are not using there uniforms in the pictures, or there logo anywhere on the pages, and all the partents have gave you primission to take the pictures of their kids , or gave you the pictures they took, and your only charging the cost to devolope, then i dont see how they can sue you. As for them thinking your taking momey away from them, all the parents that buy the books and photos will still buy them. Its there kid, just cause they have one picture doesn't mean thats all they want.