I'm almost 21 so I basically grew up right when cell phones became popular among teens and I agree with the older people. Cell phones and the Internet have made gaming women MUCH EASIER.
Younger kids, I'm not much older than you so think about it like this: imagine if the girl you're currently going after didn't have a cell phone or Facebook or Internet access. How would you game her? You either have to call her house phone (which nobody does now, people rarely even call girls they just text them) and talk to her parents first before her, OR you have to game her in person and you have to VERY GOOD to leave a lasting impression since she won't see or talk to you until the next day at school.
From that perspective, I think it was much harder to leave an impression on a girl because if the guy wasn't interesting enough, she'd forget him 10 minutes later. However, girls (especially high school girls) are being bombarded with text messages 24/7 by guys (most of whom are trying to game her), I knew how it was in high school trying to game a chick and theres 5 different guys also texting her. So from that standpoint you still have to be good to get a girl today.
Regardless, the means of gaming chicks changes (house phone, internet, cell phones) but the game never actually changes.