[Campion]

Assuming she's a grownup, her actions and their consequences are her responsibility, no one else's.

Completely irrelevant to the question of whether it's good for her, or good for society in general.

[Modernman]

Completely irrelevant to the question of whether it's good for her, or good for society in general.

That's kind of a meaningless statement. Even if her behavior is nothing but negative for her, it's still her right to make bad decisions.

As for "good for society," society is an abstract concept. Societies cannot be harmed, only individuals.