You must have really low self-esteem to not want to have kids! Why else would you not want to pass on your genes? Because I'm nature's finest! I'm the end product of billions of years of evolution! A brilliant work of genetic art, completed at last! I'm so highly evolved, nature didn't give me the urge to breed, 'cuz I don't need it--it'd all be downhill from here! You must be an egomaniac to not want to have kids! Beam! Glow!