The question is worded backwards. Domestic Violence had an effect on legislation. Legislatures passed statutes defining and prohibiting domestic assaults in response to the social order need to do so.
If you stay in the relationship, probably close to 100%.
Broken and dysfunctional family units and a heritage of "learned violence" passed on the the offspring of the abusive partnership.
Psychological and emotional violence Physical violence Sexual violence
Unfortunately they probably can. They should be required to throw the book at abusers though.
The Implications of Domestic Violence on Children
Why You Should Report Domestic Violence to the Police
How to Detect Domestic Violence
What to Do About Domestic Violence