{"id":"ac89df01bec1e076c17befe864cd33be","slug":"lining-up-toys-repetitive-behavior-toddlers-age-2","question":"lining up toys repetitive behavior toddlers age 2","answer":"Lining up toys is a common behavior in toddlers around age 2, and research suggests it's often connected to their developing self-control skills. When toddlers have stronger abilities to shift their attention and manage impulses, they tend to show less intense repetitive behaviors like lining up toys, hand-flapping, or rigid routines. This pattern holds as children move from 2 years into their early 3s.\n\nThe important thing to know is that this isn't about your toddler's temperament or anxiety level — those don't predict whether lining up will happen. Some toddlers naturally gravitate toward this kind of organizing play, and it typically becomes less intense as their self-control skills strengthen. If your toddler's lining up feels extreme, inflexible, or is getting in the way of other play or daily routines, that's worth mentioning to your pediatrician, but mild repetitive organizing is just part of how many 2-year-olds explore and make sense of their world.","sources":"[{\"pmid\":\"42534568\",\"title\":\"Effortful Control but Not Negative Affectivity Predicts Intensity of Restricted Repetitive Behaviors in Toddlers With Neurodevelopmental Conditions.\",\"journal\":\"JAACAP open\",\"year\":\"2026\",\"url\":\"https://pubmed.ncbi.nlm.nih.gov/42534568/\",\"score\":0.81}]","thread_json":null,"topic":"toddler-milestones","view_count":0,"created_at":"2026-09-04T23:00:45.318Z"}