Whats wrong with this world? Or does yahoo answers make it look worse than it is?

So.. I'm 15 years old, male... And I see all this aweful stuff on yahoo.. Girls asking stuff like "I'm 15 and I had sex, whats the chance of getting pregnant?" And all this other awful crap. I mean people our age shouldn't be doing crap like that, you know? I mean I'd never do that with my girlfriend! Sure I mean I have hormones and crap, but I mean its called waiting till your married... Or AT LEAST engaged... All this crap just sickens me... Maybe I'm just being ignorant for thinking like this simply because of yahoo answers, cuz obviously people come here with problems that aren't good. So its like a website full of bad stuff. Maybe that kinda makes me think differently... All of you older people out there, that are so called "wiser" than me... Please do tell me.. Is the world REALLY this awful? This s*** is freaking me out...