Becoming a disciple of Jesus means accepting the invitation to belong to God's family, to live in conformity with His way of life: "For whoever does the will of my Father in heaven is my brother, and sister, and mother."
Parents should welcome and respect with joy and thanksgiving the Lord's call to one of their children to follow him in virginity for the sake of the Kingdom in the consecrated life or in priestly ministry.
Source: Catechism of the Catholic Church (Vatican.va)