The nature of the infant is not just a new permutation-and-combination of elements contained in the natures of the parents. There is in the nature of the infant that which is utterly unknown in the natures of the parents.
My parents have raised me with a sense of what's really important and have given me decent values, and I'm comfortable, but I haven't lived an excessive lifestyle in the least. And I've kept my expenses to a minimum so that I have the freedom to wait.
It is true that my parents were worried because I began to speak fairly late, so that they even consulted a doctor. I can't say how old I was - but surely not less than three.