This is almost always a sign that what you're reading is bullshit
http://content.time.com/time/subscriber/article/0,33009,1074861,00.html
http://content.time.com/time/subscriber/article/0,33009,1074861,00.html
These articles invariably include a paragraph chirpily noting that their entire premise is wrong. If rock music causes teen pregnancies, why are so few teens in Europe pregnant? Oh well, bye!
First two-thirds of article: [Mercilessly reinforces puritanical sex norms]
Final third: Where do kids get these puritanical sex norms?!
Final third: Where do kids get these puritanical sex norms?!
OK phew we're done with the digression into the actual causes of teen pregnancy and we're back to moral-panic stuff. Lake Michigan!