ii personally dont think 14 is too young to date.
i did loose my virginity when i was 14 but it ws a drunken mistake but if your daughter is happy to date then you really can't stop her. just make sure that she knows that your there for her to talk to if she needs to talk to anyone about dating because i enever had a sort o bond lke that. but i think kelyl aswell thats not bad advice either. x