Why are my experiences contradicting the statistics?

According to this statistic, http://nces.ed.gov/programs/digest/d13/tables/dt13_104.20.asp, only 40% of people between the ages of 25 and 29 have Bachelor's Degrees. However, it's difficult for me just to find a 23 year old that doesn't have one. I know my social circle may be bias, but that's the only contradictory source. I'll look up random strangers facebook, and they've all had one since before they turned 23 or are in process of doing so if under 23. And it's not just facebook. I'll go to online dating sites, and anyone I look up, of either gender, has had, or will have, a Bachelor's Degree before turning 23. And it's the same thing with twitter, Linkedin, youtube, or any other form of social media that I use. What's going on?