B'man--I agree that the decision is made by the individual (not including rape). However, the decisions should be based on a thought process in which consequences/risks are taken into consideration, such as "if I have sex, I may get ________" (insert: pregnant, an STD, a reputation as a slut, etc.). It is the logical thought process that is/should be taught by the parents, from early developmental ages (such as teaching the child "If I touch the stove, it will burn/hurt").
Trust me at 16, I was hornier than a motherf'cker and what little my parents taught me about sex (as I learned more from friends, school, etc.) usually was buried in the depths of this empty head. However, I knew the consequences that if I knocked up a girl it would/could change my life significantly.
(Now the irony is that Mrs. Artie and I are having trouble in Little Artie making. And no, it's not the 150lbs of dog in the bed. Long story. Hey, maybe we can adopt one of the Massachusetts Teen Pact babies. Will update you via email one day on this whole situation if you are interested/curious.)