This is not a new phenomenon. Even Emperor Constantine followed the religious path of his mother despite the fact that doing so decreased the power of the cult of the emperor. Because of her faith, an entire empire and the course of history changed.
As our mothers give us life, it only makes sense that we turn to them for questions about existence both in this world and the next. Despite the fact that many religions show their gods as father figures, it is the mercy of the mother that we seek. For Catholics, this explains the devotion to Mary as the Mother of God and the Queen of Heaven and Earth. She is the ultimate mother figure, one devoted to her child through His life, His death, and His resurrection.
Happy Mother's Day to all mothers out there, and thanks to those who have provided their children with the guidance and love needed to become caring and loving people.