No, you don't trust her, because you wouldn't trust you. I don't blame you. I wouldn't trust you. But it's probably best that you not concern yourself too much.
Think about it. She reminds you of yourself at her age. And she has the advantage that she has had sixteen years to learn from you and your wife, and you don't know what that learning involved. Resign yourself to the fact that you will never have complete control over who and what she associates with, and accept what influence you will be able to have.