Okay kiddo, have you ever seen a traffic cone? It's usually bright orange and looks like a pyramid with a flat top. It's used to help us stay safer when we're driving or walking along the road.
When people are fixing the road or doing some work on it, they put the cones out to tell drivers that they need to be careful and slow down. The bright color helps drivers see them better so they know to slow down and be careful.
Traffic cones can also be used to block off certain areas of the road, like when a street is closed for a parade or a big event. They make it so that cars can't drive through that area and keep people safe.
So, traffic cones are really just a helpful way to keep us safe when we're out and about on the road.