Young children are inquisitive by nature and your child may be starting to notice differences between themselves and their friends. Has your child started to ask questions about people they see at the shops or at the park? Don't shy away from what they're pointing out - dive into it.
These types of comments or questions from young children are likely unintentional. They typically reflect what they've overheard, rather than what they believe. Children will often say words or phrases that they've noticed elicits a reaction, such as laughter, from their peers, without knowing what they actually mean.
It's never too early to talk to your child about race, and it's important to encourage their natural curiosity in conversation. Look for everyday opportunities to open up the dialogue and, as you start having these conversations, remember that you don't have to tackle all issues at once. You don't have all the answers - and that's okay. Use these opportunities to explore and learn along with your child.