82 In such a home it is scarcely possible that, while all seek to copy their parents, example, none of the sons should listen to and accept the invitation of the Divine Master: "Come ye after Me, and I will make you to be fishers of men." Blessed are those Christian parents who are able to accept without fear the vocations of their sons, and see in them a signal honor for their family and a mark of the special love and providence of Our Lord. Still more blessed, if, as was often the case in ages of greater faith, they make such divine visitations the object of their earnest prayer.
Source: Ad Catholici Sacerdotii (Vatican.va)