It doesn’t follow that because you had an epiphany of sorts after having children, the “childless” class are out there living an unenlightened life. Many of us have a quite reasonable understanding of the universe and what parenthood entails and have still decided not to be parents.

If you want to focus in particular on the notion of how “selfless” you learn to be after becoming a parent — this form of “selflessness” is actually just an expansion of selfishness to include your own children. It isn’t some enlightened ego free global selflessness.