Updated: Heterosexual Biological Families are Best for Child Rearing

"NEVERTHELESS, the mounting evidence in the social sciences continues to teach that, as important as processes and dynamics are, family structure is still strongly correlated with the well-being and flourishing of children. And the evidence is clear that the structure setting the standard for child well-being is the intact married biological family."

http://www.deseretnews.com/article/765581791/Editorial-Family-structure-counts.html

This seems intuitively correct so Dad is on guard for bias confirmation. Heterosexual married couples model their relationship to their children. Children of same sex couples, it would seem, lack that modeling and must learn it elsewhere assuming they wish to pursue a straight relationship when grown.

We should disavow the notion that “mommies can make good daddies,” just as we should disavow the popular notion…that “daddies can make good mommies.”… The two sexes are different to the core, and each is necessary—culturally and biologically—for the optimal development of a human being - David Popenoe

David Popenoe, Life Without Father: Compelling New Evidence That Fatherhood and Marriage Are Indispensable for the Good of Children and Society (New York: The Free Press, 1996), p. 147
Accessed 7/2/2013
http://www.heritage.org/research/reports/2013/03/marriage-what-it-is-why-it-matters-and-the-consequences-of-redefining-it


Moreover the differences between the sexes complement, i.e. they complete, each other. Whereas dads can emphasize certain attributes in rearing their children, risk taking for example, mothers can emphasize counterbalancing attitudes, e.g. security seeking.

Update: Alternative family structures, like the New Family neighbors, two single sisters that just completed adoption of a girl from China, can be better situations for children than other circumstances. Dad recognizes that. Still the girl is disadvantaged by not having a father. Thus he believes the intact heterosexual biological family is the gold normative standard.