This article presents some trends in the leaving home process of young
adults between 1950 and 1990 and the trend shift that took place in t
he second half of the 1970s. Using a theoretical scheme, the authors d
iscuss the possible relationship of material and nonmaterial resources
in the family and outside the family with young adults' decision of l
eaving or staying home. Related to family-bound material resources, th
e authors discuss variables such as parental money, parental services,
and the economic job status of the father. Nonmaterial family resourc
es are the parent-child relationship, norm and values, and educational
level. Both material and nonmaterial variables do not explain the tre
nd shift in the leaving home process. In general, the authors conclude
that the material and nonmaterial variables outside the family offer
promising explanations for the trend shift in the average age at which
young adults leave home for the first time.