The Lord leads His children when they are afraid and even when they do not see danger ahead. Joseph and the wisemen did not have the Bible as we have it today. God has not promised to appear to us in dreams. He may choose to do so but He has not promised that He will. Children model their lives after their teachers.
Children model their lives after the lives of their pastors.
Very often young men wish to study for the ministry because of the influence of the pastor. Today Joseph is our model. He is our model of obedience to the Word of God and his companionship to Jesus. Similarly, the story of Joseph is a story of obedience to the voice from heaven. When he and Mary became engaged to be married, before they slept together, they discovered that Mary was pregnant.