Whenever I debate a controversial issue, I like to go straight to the studies in order to let the evidence speak for itself. Although it’s difficult to convince someone on the opposite side to change their mind, usually people in the middle will side with the person who has evidence, instead of the person who is crying the loudest and telling anecdotal stories that may or may even not be true.

The Public Discourse reports on a study out of Canada.

Excerpt:

A new academic study based on the Canadian census suggests that a married mom and dad matter for children. Children of same-sex coupled households do not fare as well.

There is a new and significant piece of evidence in the social science debate about gay parenting and the unique contributions that mothers and fathers make to their children’s flourishing. A study published last week in the journal Review of the Economics of the Household—analyzing data from a very large, population-based sample—reveals that the children of gay and lesbian couples are only about 65 percent as likely to have graduated from high school as the children of married, opposite-sex couples. And gender matters, too: girls are more apt to struggle than boys, with daughters of gay parents displaying dramatically low graduation rates.

Unlike US-based studies, this one evaluates a 20 percent sample of the Canadian census, where same-sex couples have had access to all taxation and government benefits since 1997 and to marriage since 2005.

While in the US Census same-sex households have to be guessed at based on the gender and number of self-reported heads-of-household, young adults in the Canadian census were asked, “Are you the child of a male or female same-sex married or common law couple?” While study author and economist Douglas Allen noted that very many children in Canada who live with a gay or lesbian parent are actually living with a single mother—a finding consonant with that detected in the 2012 New Family Structures Study—he was able to isolate and analyze hundreds of children living with a gay or lesbian couple (either married or in a “common law” relationship akin to cohabitation).

So the study is able to compare—side by side—the young-adult children of same-sex couples and opposite-sex couples, as well as children growing up in single-parent homes and other types of households. Three key findings stood out to Allen:

children of married opposite-sex families have a high graduation rate compared to the others; children of lesbian families have a very low graduation rate compared to the others; and the other four types [common law, gay, single mother, single father] are similar to each other and lie in between the married/lesbian extremes.

Employing regression models and series of control variables, Allen concludes that the substandard performance cannot be attributed to lower school attendance or the more modest education of gay or lesbian parents. Indeed, same-sex parents were characterized by higher levels of education, and their children were more likely to be enrolled in school than even those of married, opposite-sex couples. And yet their children are notably more likely to lag in finishing their own schooling.

[…]The truly unique aspect of Allen’s study, however, may be its ability to distinguish gender-specific effects of same-sex households on children. He writes:

the particular gender mix of a same-sex household has a dramatic difference in the association with child graduation. Consider the case of girls. . . . Regardless of the controls and whether or not girls are currently living in a gay or lesbian household, the odds of graduating from high school are considerably lower than any other household type. Indeed, girls living in gay households are only 15 percent as likely to graduate compared to girls from opposite sex married homes.

Thus although the children of same-sex couples fare worse overall, the disparity is unequally shared, but is instead based on the combination of the gender of child and gender of parents. Boys fare better—that is, they’re more likely to have finished high school—in gay households than in lesbian households. For girls, the opposite is true. Thus the study undermines not only claims about “no differences” but also assertions that moms and dads are interchangeable. They’re not.

With a little digging, I found the abstract of the study:

Almost all studies of same-sex parenting have concluded there is “no difference” in a range of outcome measures for children who live in a household with same-sex parents compared to children living with married opposite-sex parents. Recently, some work based on the US census has suggested otherwise, but those studies have considerable drawbacks. Here, a 20% sample of the 2006 Canada census is used to identify self-reported children living with same-sex parents, and to examine the association of household type with children’s high school graduation rates. This large random sample allows for control of parental marital status, distinguishes between gay and lesbian families, and is large enough to evaluate differences in gender between parents and children. Children living with gay and lesbian families in 2006 were about 65 % as likely to graduate compared to children living in opposite sex marriage families. Daughters of same-sex parents do considerably worse than sons.

The author of the study is a professor of economics at Simon Fraser University in British Columbia. His PhD in economics is from the University of Washington. A previous study had shown that gay relationships typically have far more instability (they last for more shorter times). That’s not good for children either. Another study featured in the Atlantic talked about how gay relationships have much higher rates of domestic violence. That’s not good for children either. So we have three reasons to think that normalizing gay relationships as “marriage” would not be good for children.

The reason I am posting this is because I want people to understand why social conservatives like me propose these laws defining and promoting marriage. We do favor natural marriage for the same reason that we oppose no-fault divorce, and for the same reason why we oppose welfare for single mothers (it encourages single motherhood). We don’t want to encourage people to deprive children of their mother or their father. We look at the research, and we decide that children need their mother and father. Given the choice between the needs of the child and restraining the freedom of the adults, we prefer the child’s need for her mother and father. It’s not just arbitrary rules, there is a reason behind the rules.

But children are not commodities. They have certain needs right out of the box. Adults should NOT be thinking about how to duct-tape a child onto any old relationship that doesn’t offer the same safety and stability that opposite sex marriage offers. We should be passing laws to strengthen marriage in order to protect children, not to weaken it. Libertarians don’t want to do that, because they want adults to be free to do as they please, at the expense of children.  Libertarians think that the adults should be able to negotiate private contracts and have no obligations to any children who are present, or who may be present later.

Related posts

• Comprehensive survey of all the research (pro and con) on gay marriage
• Ryan T. Anderson explains how gay marriage undermines natural marriage norms
• Ryan T. Anderson presents the case for natural / traditional marriage
• Book review: What is Marriage? Man and Woman: A Defense
• Dawn Stefanowicz explains her experience being raised by a gay parent
• What is marriage? A lecture with Sherif Girgis, Ryan T. Anderson and Robert P. George
• Growing up with two lesbian mothers: a child’s perspective
• Mark Regnerus and the progressive war against science
• More social scientists stepping forward to defend Regnerus study
• Do children of gay parents perform as well as those of heterosexual parents?
• Are gay relationships typically stable and monogamous?
• The American Psychological Association (APA) on lesbian and gay parenting
• Do children raised by gays and lesbians do as well as those of married parents?
• New study finds that children do best in traditional mother-father families