Absolutely. I know people, though, who ended up pregnant on many different birth control methods, INCLUDING permanent sterilization. Luckily, they were married people.
I like very much what you wrote about how sex is bad for young people also for emotional reasons. We underestimate what heartbreak can do to the young, hormone-addled brains of both boys and girls. Sex and drugs should be avoided by minors. I think rock and roll would be OK, LOL, but NO VIDEOS.
I had a neighbor who supposedly had no tubes and her husband ran on ...half a tank ...when they got married. Their daughter is about to graduate high school.:D
C'est la vie.