Many teens plan to remain abstinent until marriage because of their religion and morals.
I think it depends on how much you are into your religion and how much your parents make it clear that you should consider your religion or spirituality in major life decisions. I to some teens religion plays so large a role in their lives that they would never even get into the situation. I think teens think about their religion, faith, and spirituality when deciding if they are ready for sex, but it seems like their curiosity is so much stronger that their faith so they follow what has a stronger hold on them. I think it has a huge impact. My religion is what kept me from having sex.