A 21 year old man "dating" a 14 year old girl is wrong because the girl has no idea what she's doing. The man is taking advantage of her immaturity regardless of the circumstances. Kids that young simply can't have an adult relationship. They're too stupid, to put it bluntly. I've never seen a girl 16 and under that's dating a guy 18+ and thought it looked like a healthy, fuctioning relationship. Everything about it is wrong!