We have no way of knowing what she did or didn't do in regards to her daughter's sex life--furthermore it is none of our business. The sad fact is she may have done her best to do the things you suggest- but having raised several teens myself I do know the old saying "you can take a horse to water but you can't make them drink" applies itself well to dealing with teens.
the libs celebrate unwed mothers, hollyweird is full of them
i have had the talk with my children, all i can do is monitor them and have faith that they will make the right decision