“…Rather than trying to shape concepts of the family from a single mold, policy makers and researchers would be better advised to recognize the high degree of diversity and fluidity in family and household structure (see Bould, 1993;Hernandez, 1993;Liss, 1987;Trost, 1993; for similar arguments; see Crispell, 1991;Germain, 1994;Riche, 1991;Smith, 1992;and Sorrentino, 1990, for discussions of the changes in families in recent decades). Relational ties vary over the life course as one's procreative family forms and one's family of birth disappears, and marriage, divorce, remarriage, fertility, and mortality reshape the size and composition of an adult's procreative family.…”