"Nothing wrong with teenagers experimenting with sex". H'mmmmmm.
What about diseases linked with early age of first intercourse?
Is teenage pregnancy really a good thing? I know there is such a thing as damage limitation, but don't we want to see the teenage pg rate reduced?
The earlier people start to be sexually active, the greater the number of sexual partners they are likely to have in a lifetime, the greater chance there is of passing on infections.