I am wondering if perhaps all vocations—to the married life, priesthood, or consecrated life—are perhaps all calls to family life. For those who are married this is an obvious observation but perhaps less so for the other vocations I listed. But even these latter two—the priesthood and consecrated life—are seemingly calls to family life. The priest, rather than marrying and having his own biological children, adopts the family of a parish or apostolate or what-not and becomes their spiritual father—hence why we refer to these men as such. And even the nun or monk is called to the family life when they join a religious community and become one with that family of like-minded individuals. They become brothers and sisters to one another and sometimes—if they are ordained priests in the case of monks—fathers and even grandfathers to the younger members of the congregation.
So in a sense all these vocations are calls to family life—just in different forms.