But, obviously some things you should grow out of as you mature, like being unable to put yourself to sleep, but other things you really can’t grow out of, like breathing. I started breathing right after I was born. I don’t know if I can go through a rite of passage where I don’t breathe anymore. (Well, I could, but my life after that seems overly brief….)
Of course, when you reproduce, you are creating a human being whose reproductive potential will be mostly wasted as well. Having a kid means over time that even more sperm or eggs will go unused for reproduction, a cycle of biological waste passed on to generation after generation.