In fact, research (this is from the us) has shown that the biggest factor to influence a child’s life outcome - is the presence of two parents and stable family life.
>>>, marriage and a stable two-parent family appear to matter more than ever for children on a range of outcomes.
Recent research suggests that an intact family is increasingly tied to the financial, social, and emotional welfare of children—and family instability is more strongly linked to worse outcomes for kids than it used to be. The upshot for children is that marriage not only still matters, but it seems to matter more than ever. Children who have the benefit of two parents are comparatively more advantaged today than they were in previous decades.
Consider children’s educational attainment. In Education Next, a research team led by Kathleen Ziol-Guest at New York University explored the link between family structure and “educational attainment”—or how many years of schooling children complete across America. From the late 1960s, when family breakdown was more unusual, to the 1990s, when it was common, that link did not weaken; instead, it grew stronger. The researchers concluded: “the estimated relationship between the single-parent family structure variable and educational attainment more than tripled in size.”6 The tightening link between family structure and education does not just apply to educational attainment, it also extends to student behavior.
A recent analysis by Nicholas Zill and Brad Wilcox found that “rates of school contact for student misbehavior are nearly twice as high among students living with separated or divorced parents as among those living with stably married parents.” Zill and Wilcox also found that school suspensions or expulsions are almost three times as high for children living in non-intact families, compared to children in intact, married families.
Moreover, their results indicate “the relative risk faced by students from non-traditional families has actually increased” from 1996 to 2019 when it comes to school suspensions and expulsions, as well as school reports of student misbehavior. To be sure, on some outcomes, like repeating a grade, Zill and Wilcox found that the link was essentially stable over time. But they found no evidence that the link between family structure and student outcomes is diminishing.<<<