I would hope that parents wouldn't read personal letters that are addressed to their children. If my daughter received a letter, I would just hand it over to her, (actually I never get the mail anymore.......the kids always beat me to it, lol). But yes, I agree with Lucid. If you suspect they are going to be reading it, I wouldn't go overboard. I would just state your case as sweetly and respectfully as you can. Good luck.