Women cannot always leave, some reasons include fear, lack of money, lack of information, because of the children, thinking he will change. The ramifications can be more serious if she does leave. Alcohol consumption is the most common cause of domestic violence. Women only get beaten when they 'ask' for it. No-one deserves or asks to be hurt.
Violence happens mostly in poor peoples homes.
Violence occurs in all economic groups. Women do not seek out violent men. No-one has the right to hurt you. Men can control themselves, this is just an excuse. Domestic violence isn't a big problem.