Why am I not getting asked out?

Ok, Im only 12 years old turning 13 in February. Im all in all a good student, As, Bs, and the occasionally C. People say Im quiet and sweet, and Ive gotten asked out by people i dont like but only by a few people, and mostly its younger guys, and i mean wayyyyy younger that like me, and yeah there cute but little cute, if you know what i mean. I was just wondering cause its not like they dont like girls ause they ask out other girls and my friend, who is pretty, i think, but im straight, everyone says that im very beatiful. I have light borwn hair, most people would all it mousey brown but its got some red natural highlieghts in it, an inch or two below sholders, slightly wavy, bangs that i can pull back, everyone says that i look better with no hair in my face. full red lips, green /blue eyes, my eyes are like caoflauge if im wearing a bright blue shirt theyll look bright blue if im wearing a dull green shirt theyll look dull green. People say there not almod eyes, theyre not bug or cat, or skinny, or anything like that, there big and round, and very expresiion like, they can look really sad and mppy or high spirited, very long and dark eyelashes, my skin tans real nicely, and i look older than i am, i can look 14 cause my face has broader cheek bones, im thin, NOT SKINNY, delicate boned, but with pucles i love animals, and life, like trees and stuff i say what i belive in and im pretty crazy, i get a very small occasinal pimple but there hardly noticable, also i look older cause im very curvy, and everyone says that guys are gonna knock down my door, how come there not?