Nothing comes to the world fully grown.  All plants start with a seed.  People start as seeds, also grown into babies in the womb an then come into the world needing parents to bring them to adulthood.  Businesses start as ideas.  Huge churches start with one person being called.  Everything that God brings into the world, he brings in small so that the person nurturing and mentoring the seed will grow as the baby, business, career or ministry grows.