My friend's parents are really over protective, advice please?

why do you think she is so mature??? well its because her parents are clearly good parents. why would you want that to change?? you said yourself she is a good girl, so you want them to change so she can go out and do drugs and become a loser. her parents would have worked hard to get her the way she is, and i seriously doubt they will change now. stop telling her, her parents are over protective, tell her she is lucky to have parents that love her so much and are worried about her well being.