During the 13th century, the mendicant friars were typically recruited from the aristocracy, the landed gentry, and other affluent families. Their parents often disapproved of their decision, presumably because, like most parents, they wanted grandchildren. "It was a nightmare for well-to-do families that their children might become friars."
13 These families began to avoid sending their children to universities because of well-founded fears that they would be recruited into a religious life.
At the center of society was an institution with an ideology that people ought to be altruistic, that they ought to be celibate even when they were born to wealth. This explains popular acceptance of the authority of the church in matters of marriage and sex, but it still makes one wonder why these well-off people were entering monasteries and becoming celibate in the first place. Like it or not, whatever else one might say about Western Europe during this period, eugenics was not a part of the picture.