Leaving home in order to join together and form a new, separate identity as husband and wife is woven into the creation ordinance. Genesis 2:24 tells us that “a man shall leave his father and mother and hold fast to his wife…” The New Testament repeats this mandate (Matt. 19:5). Getting married necessitates getting out of your parents’ home (in all but very rare circumstances) and creating a new, independent household. At least, it does according to biblical standards.