That is true, for an adult issue, a serious and adult conversation must happen with this girl, even if it could be okay, the situation itself should be evaluated because it can get very gnarly. We don’t know much about OPs way to handle it, but it’s also possible this specific situation is fine.

Either way, I agree that just telling your daughter to stop doing something she clearly feels like doing, even if she has a distorted view of that something, is not going to help anyone.