"Study Pinpoints Factors for Early Sex"
They highlight low self-esteem and too much TV(especially certain shows) as major factors, but the primary factor has to do with teen's relationship with parents.
Here is the key quote:
But feeling close to parents may offset pressure for sex. "You have to remain close to your kids," Hyde says. "You can't just say, 'They're teenagers, they're obnoxious. I'm checking out, and I'll see them again at 20.' Warmth from parents and clear, firm guidelines can make a big difference to kids this age."
