SO where is the cut off here? 10? 11? 12?
is a 14 yr old any mentally different froma 10 or 12 yr old?
yes....and no.
But then I'm just young enough to remember what it was like to be 14.
The cutoff, whether we like it or not, is also puberty, though that is not the exclusive boundary.
When I was 11, the landlord's brother said I was 11 going on 40. My experiences in life had shaped me at that point to be as mature as many people much older. That doesn't mean I think law should be based on the 'exception,' only that the human condition is not so easily understood.
In any case, it really doesn't matter what the cutoff point is. If she had ACTIVELY participated in the murder, would you be saying she could not 'willingly' have given consent to murder?
Come now. We only apply these standards of age when it suits us.