Courts and legal professionals within the U.S. may use terms such as "parenting time" instead of custody and visitation. The goal of the newer, alternative terminology is to eliminate the distinction between custodial and noncustodial parents, and to better focus on the best interests of the children by crafting schedules that meet the developmental needs of the children. For example, small children may need shorter, more frequent time with parents, whereas older children and teenagers can tolerate and may demand less frequent shifts, but longer blocks of time with each parent.