Owning your mistake to a younger sibling shows them that strong people admit things.

Younger kids learn what strength looks like by watching, not by being told. If the adults and older siblings around them never admit anything, they grow up thinking strong people are the ones who never concede a point. Saying you were wrong in front of someone who looks up to you corrects that quietly and permanently. It also costs you almost nothing.

Apologize this week for something small and specific to someone younger than you. Name the actual thing rather than apologizing in general. Then let it go instead of explaining why you did it.