My child lines up toy cars in the same way every day. Should I let the play continue or encourage something different?

Repeating the activity may help your child explore patterns or feel settled. Begin by copying their way of playing and enjoying it together. If they seem open to a change, offer one small variation, such as sending one car through a tunnel or sorting by color. Return to the familiar version if the change is unwelcome. The aim is not to stop repetition, but to preserve your child's sense of security while gradually creating more ways to share the play.