However, I don't believe that just because kids live with a single parent for whatever reason is necessarily a contributing factor to increased risk of violence.
I agree, except that I will say that the lack of a father figure is unquestionably connected to criminal behavior. It certainly is not "just because" but it is undeniably a factor.
Still happily answering to the call-sign Peetza.
You do not HAVE a soul. You ARE a soul. You HAVE a body.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.