["Developmental Science, Volume 29, Issue 3, May 2026. ", "\nABSTRACT\n\nDelay of gratification in early childhood has long been associated with cognitive control and willpower. However, recent research has proposed an alternative perspective, emphasizing the role of habit formation in delaying gratification. We tested key predictions of this framework. Children's habits of waiting should not only increase their delay of gratification, but should decrease the work it takes for children to wait. In addition, the effects of children's habits of waiting should depend on contextual factors. A total of 149 Japanese children aged four to six years participated in a delay of gratification task, where they waited to eat a marshmallow or to open a wrapped gift, with an experimenter who behaved in a trustworthy or an untrustworthy manner. Children waited longer for food than for gifts, and children with stronger habits of waiting to eat waited longer for food but not gifts, consistent with prior work. Moreover, children tended to report that waiting for food took less work than waiting for gifts, and this effect was greater for children with stronger habits of waiting to eat. The trustworthiness of the experimenter did not significantly affect children's wait times, but children reported that waiting for the untrustworthy experimenter took more work than waiting for the trustworthy experimenter. The trustworthiness of the experimenter interacted with: a) children's habits of waiting to eat, with children with stronger habits waiting longer with the trustworthy experimenter only, and b) the strength of parent‐child relationships, with children waiting longer with a trustworthy experimenter than with an untrustworthy one only if they had strong parent‐child relationships. These findings suggest that cultural habits and social factors can interact and affect the work it takes for children to delay gratification, offering a clearer understanding of why childhood delay of gratification predicts future outcomes.\n\n\nSummary\n\nCultural dining habits increase Japanese children's delay of gratification for food, reducing perceived effort.\nJapanese children with stronger eating habits waited longer for food, but not gifts.\nWaiting with an untrustworthy experimenter increased Japanese children's waiting workload.\nStrong parent‐child relationships predict longer waiting with a trustworthy experimenter.\n\n\n"]