Where have all the single girls gone?

Geez, Ive realised that lately, all the girls who are in high school are dating college students, 19-25 year olds. Seriously, can they just save some for the actual people in high school? I don't understand how they dont get that dating a man who is way older than you is a good idea! I mean, if this trend continues, how do guys like us get girlfriends if the college guys are taking a mive chunk?