This is a yesod that we must reiterate over and over: There’s not a mitzvah in the Torah that was given for us to help the Ribbono shel Olam—everything is so that we should thereby come closer to the Ribbono shel Olam.
The mitzvah of tzedakah wasn’t given to us because the Ribbono Shel Olam needs our help to feed the pauper, and kimcha d’Pischa isn’t because there’s nebach a person who doesn’t have money for Yom Tov.
Every Yid is an only child in the Ribbono shel Olam’s eyes. He has more money and much more compassion for this person—but He also has rachmanus on you!
Hashem wants you to be an ehrlicher Yid—and this is why He gave you kimcha d’Pischa. He has compassion for you, and He wants you—through this tzedakah—to be spared from all misfortune.
The Mitzvah of Chinuch Isn’t for Your Child—It’s for You
The same applies to the chinuch of our children—and the koach hadibbur that we receive from Above on this exalted night.
The Ribbono shel Olam didn’t ask a person to speak with his children about emunah on the Seder night because He needs the child to become a ba’al emunah. He has enough ways to accomplish this. He can give the child an inspiration from Above or ensure that he’ll find the right sefer to inspire him—and He has done so for so many people! The Ribbono shel Olam can make your child into a true ba’al emunah and bitachon—and He has many better ways to accomplish this than through the vertlach that we say at the Seder.
The Ribbono shel Olam commanded us to tell this story once a year on Pesach night—because He has compassion on your soul! He wants you to be an ehrlicher Yid.