I don't think I've ever met anyone who is pro-life.
Seriously? It has been my experience that a large proportion of high school students profess pro-life beliefs (& this is coming from someone living in San Francisco).
I graduated from high-school a lifetime ago so I wouldn't know
From my experience most women are pro-choice while men don't care about the issue enough to take a position.
Well throughout high school I was in classes that were anywhere from 65% to 85% male, so that probably fueled my perception that high school students are unusually pro-life, though I have experienced that many boys in high school are extremely averse to the notion of abortion being legal.