My wife and I were the oldest of large families. We saw enough...The parents sick with worry over supporting us all, the diapers, the calls from teachers, and all the rest. All our many siblings have children, so there is no loss to the population or the family continuity. From life observations, and reading some of the more condemnatory posts, I susepct that what is behind some of the fury is the guilt some (Not a lot, but some) parents feel at, waking at 3 AM, all alone in the dark, in the deepest private secrets of their soul, wishing they had not had children, hating the soccer practice, the upcoming tuition pressures, and the whole trip.
They know they CANNOT feel this way. They MUST condemn people who do not have lives like theirs. They cling to condemning childless people, like clinging to a talisman, because NO ONE must suspect, even for a second, how they really feel.
The solution here is to dump soccer practice and paying for college. It kills me that people say that they can't have any more children because they couldn't afford college for two or three or whatever. Who the hell cares about college in comparison to bringing another life into the world?
You won't ever catch me griping about the time I spend with my children. I love every minute of driving them to their various extracurricular practices and watching them develop their talents and skills. Not only that, I've gotten involved with their sports and musical events from an administrative angle which has helped me expand my own talents and skills, and even literally paid off when I got hired as the school musical director ;-).