Can anyone tell me something women do for us that we can't do for ourselves? Well, only two things: Have babies and sate our desire for heterosexual sex. That is the role of women in the world, as far as men are concerned. Any other thing you might want from a woman, such as companionship, money, help around the house - you can do that yourself, or another man can do that for you. Those aren't feminine roles but human roles. Thus, unless you need a baby or heterosexual sex, you don't need a woman.