Would you?

My boyfriend and I are having a debate. If you had a teenage daughter (15-17) who asked you for birth control, would you say yes? I would say yes. If my daughter trusted me enough to talk to me about things like that I would hear what she had to say about and consider it, and I'd be happy she was trying to be responsible and not just going out and having unprotected sex. He, on the other hand, says she would be too young and would never consider it. Thoughts?