Regardless of some of the typical female comments, it has little to do with maturity or not longer being able to be selfish, since women always accuse others, especially men of what they're guilty OF.
Men are afraid of them because we don't grow up thinking about kids our entire lives as girls generally do. To a man a child is akin to virtually having an alien life form that we know nothing about. Girls usually grow up looking to be around babies, holding other peoples kids, taking care of them, baby sitting, talking about it with their moms, other girls, reading about them and such. Where as guys usually don't give them a second thought and even when they're trying to have a kid, it's all something completely different and foreign to a man.
I liken it to asking a woman that is on a plane where all the pilots have suddenly died being asked to go up to take the controls, then land the plane in bad weather. Something totally alien to her and most people, but that kind of "holy shit, are you kidding me" kind of reaction, fear, expectation and responsibility is what guys often feel at the idea of having a child.
Women think that they're so mature because they want to get married and think about family from the time they're little girls and guys don't. That has NOTHING to do with maturity at all, but this is largely where they get the idea that women are more mature...big deal.
Women also cry at every little thing, need constant support, validation, reassurance, are afraid of everything, always come to men for help with so many things, act like little kids in their curiosities and desires etc. When men are boys, emotionally they're like a girl, needing hugs, love, affection, reassurance and are easily scared..once he his puberty, most of that starts to go away as he no longer acts as he did when he was a child.. this is rarely the case for girls in general who keep the same emotional state and bent their entire lives demonstrating once again that its' women who rarely ever mature. Women only mature faster than boys physically, hitting puberty these days at 10 and sooner at times, but mentally and emotionally they rarely grow up. Just because women desire to get married all the time doesn't equal maturity at all. They also divorce men more than 2 to 1 too. Just like a little girl, can't wait to just run away from their vows, commitments and responsibilities when it suits them.
- Response by richsifu
, A Rebel, Male, 46-55, Science / Engineering