J.W.
I never understood the concept of the talk. To me it is like a speech, a lecture, not communication. I never had the talk with my older two and I won't with the younger two. Instead they always knew their questions would be answered.
They asked a lot of questions but I never lectured them.
I don't know, I guess I always figured the talk was for parents that just don't know how to communicate with their kids so they just give speeches. :(
Don't know about other people's stats but both my older kids were over 18 before they had sex or seriously dated so I don't think the lack of the talk causes sex at an early age.