why tho?

Okay so I'm 16 and I don't understand why but at school no guys like me like they all think I'm ugly and they don't talk to me but at work I atract all these really cute older guys and they all get hella disappointed when they find out I'm 16 and it's not like I am like triple d's or anything like I am pretty small and the guys that like me aren't like the creepy older guys but why does this happen? Why don't any guys My age like me??!
OH AND THE GUYS ARE LIKE 20-23 NOT LIKE 50 LMAO