Other factors such as religion and ethnicity are sometimes important. Until the 1960s, Roman Catholics typically favored much larger families than did Protestants. Mormons still do. On the other hand, Catholics also promoted religious orders of celibate nuns, as well as a celibate all-male priesthood. | Other factors such as religion and ethnicity are sometimes important. Until the 1960s, Roman Catholics typically favored much larger families than did Protestants. Mormons still do. On the other hand, Catholics also promoted religious orders of celibate nuns, as well as a celibate all-male priesthood. |