[Superman]

I'd agree that it's the father's business if he wants it to be his business. My advice to the father is that he announce that he does not want to know. Daughters should be taught values, and they should be well-learned WAY before puberty. Daughters should also be told about boys. (for example, it's common for teenaged girls to dismiss this concern with a "Oh, he's just a friend." Well, I was a boy, and I know what's in their minds and on their agenda.) but beyond the value-teaching and counseling about sex and relationships, the BCP decision should be handled my mom. And Dad should be kept completely in the dark, unless he's unwise and wants to get into that issue.