That's because most atheists here still are dealing with the masses of teachings from their former religion, whose first mantra is go forth and procreate. So many atheists keep their religious values and only throw out the god part... that is not a true atheist. In the animal kingdom at large, very few species attain the levels of fertility achieved technologically by Homo sapiens. Our obsession with self reproduction is obscene!
You're certainly not alone.I can't even count the number of times people have looked at me in complete shock when I say I don't want kids.
I don't want kids either.