Causes exist that men may fight. Men growing up are rewarded socially for eating a lot. Men hate more readily than they love. Men have become the tools of their tools. I would never think of cheating.
Beer does as many chores as a man.
Beer doesn't care if you balance your checkbook. Beer doesn't care if you go shopping. Beer doesn't think black leather bikinis are neat. Beer lasts longer than seven seconds. Beer never expects you to sleep in the wet spot.