Why is it so hard to find girls in their early 20s that are available? every girl I come across dat age has bf?

You sound like the boy version of me! I can count on one hand how many times I've actually been asked on a date, and I'm 24 and dateless all the time. Many of my friends are getting married and I don't even have a guy that I know. I guess my answer to your question is... YES they are out there, but they are probably like me and they don't go out all that often because they work long hours and are too tired most of the time to go out. Also most of their friends have significant others so I ask myself "do I want to be the fifth, 7th, 9th wheel again? or do I want to just watch a movie at home?