The National Longitudinal Lesbian Family Study (NLLFS) has been following a contingent of lesbian families since they first started to plan to have kids in the late 1980s and early 1990s. Those children are now about 25 years old, and the researchers have confirmed that they’re doing swimmingly.
Compared to their peers who were not raised by same-sex couples, researchers found no significant differences with respect to “adaptive functioning (family, friends, spouse or partner relationships, and educational or job performance), behavioral or emotional problems, scores on mental health diagnostic scales, or the percentage of participants with a score in the borderline or clinical range.”
