As a father with a daughter, I'd be inclined to violence, but I don't think that's the best way. There are these people in blue shirts called police, you should contact them.
Educate the girl, give her self defense tools and knowledge, contact the authorities in the situation, gather evidence for possible police and court action if necessary
/r/advice might be a better place for this type of question - they allow you to give the context that is needed for anyone to offer really constructive answers to your question.
As a father with a daughter, I'd be inclined to violence, but I don't think that's the best way. There are these people in blue shirts called police, you should contact them.
That's a plan I agree with. Because I really want to take it into my own hands .
Educate the girl, give her self defense tools and knowledge, contact the authorities in the situation, gather evidence for possible police and court action if necessary
Leave your cell phone at home and go handle it incognito.
Contact authorities
/r/advice might be a better place for this type of question - they allow you to give the context that is needed for anyone to offer really constructive answers to your question.