And? Having children isn't the sole determinant of our well being/happiness nor do they necessarily actually determine happiness. Moreover, it's a reflection o

And? Having children isn't the sole determinant of our well being/happiness nor do they necessarily actually determine happiness. Moreover, it's a reflection of current society, not a society of immortals. People for the most part considered immortality a foolish dream or actively hostile to the idea, driven by cultural inertia and active cultural reinforcement.