what is wrong with sparring a girl?
i spar with people that are as good as me or better to learn from it.
just spar a girl the same as the next man. (exept a full spar i choose to spar a guy).
when i spar some 1 who is less experience, i go easy and throw less punches
girl or guy.

in a full spar it is difirent cuz i would not hit her with all i got.
but that is why you can choose who you spar, and make an agreement on what kinda session it will be.
just like jade said, she doesn't get dragged into the ring, she has a choise