Every U.S. state resolves custody and parenting-time disputes under some version of a best-interests-of-the-child standard, but the specific statutory factors vary — commonly considered elements include each parent's ability to meet the child's needs, the child's relationship with each parent and siblings, any history of domestic violence or substance abuse, the stability of each proposed home environment, and, depending on the child's age and maturity, the child's own expressed preference. No single factor is automatically controlling, and courts have broad discretion to weigh the factors as a whole.

The standard is deliberately open-ended, which gives courts flexibility to respond to a family's specific circumstances but also makes custody outcomes among the least formulaic in family law — two cases with superficially similar facts can be decided differently depending on how a judge weighs the statutory factors and the evidence presented, including testimony from evaluators, guardians ad litem, or the children themselves in some cases.

Because best-interests findings depend heavily on judicial discretion and case-specific facts, Juricratic represents a custody outcome as a distribution over plausible parenting arrangements shaped by user-input factor weights, rather than a single predicted custody result — consistent with the platform's simulation-not-prediction framing.

Family law attorneys build a best-interests case around the specific statutory factors their jurisdiction weighs most heavily, often supported by evaluators, school and medical records, and witness testimony about each parent's involvement, and they use the open-ended nature of the standard to frame settlement negotiations around what a range of reasonable custody outcomes might look like rather than a single fixed number.