19 I think is a pretty good age to start dating.
That way youre not bothered by it in High School when getting good grades in important. I didnt start until I was 19 and I look at it as a good thing. You will make an ass out of yourself quite a few times, but I think you make up for it in what I call the "Ugly Duckling" syndrome.
I forget where I heard this, but ever notice an ugly girl becomes hot (loses weight, loses acne)... they are usually the best catches, because they're hot, but they don't abuse their power? I think this same theory applies to men who start dating later in life. Guys who start dating early in life realize sooner how "the game" works and abuse their power. They know how to lie to women to get them in bed. Now.... granted this is a good thing if all you're looking for is sex. I think these types of guy are the ones that become "players" and really don't appreciate women the way they should.
Guys who start dating later in life really appreciate women because they're more mature, and know what they've been missing. They treat their women better and really listen when it comes down to it.
this can be a good or bad thing, depending on how you look at it. And this is a very general theory I have that doens't apply to everybody. I think the Late Bloomers are the ones who really are themselves and don't try to put on a show to "play the game". I think this whole theory applies to the "Nice guys" who really are just that, nice guys.
Ok this psot is getting a little long. If the above didnt make any sense its because im incredibly hopped up on Caffiene and think I might run out my bedroom window any second.
But back to the original question.... no matter what your age... THERE WILL ALWAYS BE SINGLE GIRLS! ALWAYS! Especially at the 18-24... thats when they're the sluttiest and easiest to take advantage of (Keep in mind they'll take advantage of you as well)