Ronald Bailey doesn’t seem to like kids much, perhaps because they can’t buy his books or otherwise support his "voluntarily childless lifestyle." As Matthew Yglesias (whose position has its own problems, according to our pomocon friend) notes, this calculation works--I’d say might work--until you’re old. But perhaps Bailey doesn’t care about the loneliness of old age without children and grandchildren, or perhaps he doesn’t plan to grow old. And it’s quite likely that he’s utterly indifferent to the cost of social insurance and other government programs that provide benefits to the elderly. Does he care about a functioning economy, one vibrant enough to generate his private retirement income? Who’s going to collect his trash, clean his streets, and keep him safe from criminals and terrorists? Or won’t there be any terrorists and criminals in his largely child-free future, where all the unpleasant stuff is taken care of by robocop and robotrashman?
But let me return to the central point: one of the things that makes us human is feeling and living up to responsibilities for others, which is manifest much more powerfully in child-rearing than even in marriage (especially if you’re talking about two "autonomous adults," each of whom is earning an income sufficient to support himself or herself). Bailey’s position seems to run away from adulthood, because it isn’t much fun. The libertarians I respect are grown-ups who aren’t afraid of grown-up responsibilities.
I hold out the possibility that Bailey is better than his argument, but if the argument shows the man, it actually shows the adolescent.