If Earth is our physical Mother, perhaps our physical Father is Sol, the great thermonuclear provider. Sure, he seems to have other wives or at least concubines (some "very hot" and others the proverbial "ice witches"), but he is older than Mom and will provide for his children for eons to come.
As a species, I am afraid to hazard a guess as to our relative age. I tend toward "childhood's end". Surely no adult (even with the excuses of adolescence) is as arrogant and uneducated as Humans are.
We are spoiled. We act without regards to consequences, waste the resources given to us, litter our nest, trash our toys, torture our pets, play poorly with others and even design and manufacture unbelievable toxins (and I do not mean flatulence). We generally act in a most selfish manner. As spiritual beings we are, as yet, not just underdeveloped but undeveloped and without discipline.
Before we can leave the nest, we need to at least clean our rooms, properly take out the trash and perhaps show that we have learned some responsibility by feeding everyone and then doing the dishes and the laundry for the entire family.