I can break down my family for you, they ALL use iPhones:
Me: 24 M
Fiance: 27 F
Brothers: 27 M, 29 M
Sis-in-laws: 27 F, 30 F
Parents: 58 M, 56 F
I know a few Droid users, but I couldn't give you their exact ages, so I wont screw up your stats by ball-parking them.
Cool study, hope this helps!