birth control

what would a law of chastity abiding girl like myself need birth control for? i use the best kind: abstinence! lol. i know if there are any liberal readers of this blog, they are rolling their eyes and hotly dismissing me as a prudish religious zealot. definitely not the case, but thats not my point of writing this post.
a dear(non member)friend who has none of the religious "sexual hangups" that i do was the lone voice of reason in a group of women who were discussing buying birth control for their teenage children. my friend asked for my opinion and this is what i told her:

i would hope that parents would be educating their kids along the way-instilling the family values from the beginning so when the kid gets to be a horny teenager you will either have enough clout to convince them not to have sex(if thats what your family values dictate)or they will trust you enough to tell you they are going to have sex & need some guidance on how to be safe. i dont think people should throw a box of condoms or a diaphragm at their kids and say "just be safe". i think there needs to be continuing education,but allowing them access to appropriate birth control seems much more favorable than an unwanted pregnancy and very adult responsibilities for kids whose brains havent even fully formed yet. not to mention stds. good grief. dont even get me started on that.

from what my friend told me, i guess its "cool" to be a parent that is open about allowing their kids to have sex and providing the birth control. i personally find this ridiculous.
any thoughts? even "good" mormon kids have sex-what are the parents out there doing? do you think you are successful at promoting religious based abstinence or are you all hiding your heads in the sand and just hope your kids dont get "caught" with a pregnancy or std?