content: You can have standards yes, but telling your kids no is the worst way of keeping them from doing the thing you don't want them to do. It does the exact opposite actually.  Punishing a girl for loving somebody will only make her want to do it more.  People need to explore proper boundaries and experience things themselves.  I've found many different ways to teach my children not to do things I don't want them doing.     I can't count how many parents i've seen telling their children to say thank you, when you as the adult just need to honestly say it when appropriate.