Because a grown man has a much better chance of defending himself against another grown man than a woman does? Why does this need to be explained to you? Like, literally the first thing my dad told me when I was a kid is you never hit a woman. Whether it's a relative, spouse, girlfriend or just some random woman you met for the first time and that if he ever found out that I did he would beat the crap out of me. I understand the physical differences that may exist between males and females I just don't get more worked up over the assault of one gender over the other. Just don't hit anyone regardless of age, gender, whatever. The fact that many seem to be giving him a pass because he was drunk is disturbing as well.