It is very true that many parents don't take on the responsibility of teaching their children the perils of teenage sex. I am a high school counselor, and I talk to nearly every pregnant child on my campus. Many of the parents came in and when I ask them if they were aware that their child was having sex, they say yes. They often follow that with "but she PROMISED that she would stop after the pregnancy scare last year".
Parents don't seem to understand that once their children start having sex, they are not likely to stop. They have to bite the bullet and change their approach (ie focus on pregnancy and STD prevention). You would be surprised by how many students get pregnant for a second time because their parents would not provide birth control after the first pregnancy. At this time, they will often convince themselves that it is my fault for not providing adequate counseling!
