Differences explained by 4 year olds

For all of us out there who worry and stress about teaching diversity and acceptance in our classrooms, I have to share this over heard conversation. My kiddos had just returned from the playground and were at the sink washing hands… Child 1 : looks at waiting peer as she washes her hands ” I’m dark. What color are you?” Child 2: glances at her skin, then at peers skin, moves to begin hand washing and says “I’m the true color” Child 1: “ok” hops away to go play. And there you have it, as long as you are my friend does it even matter?