Dreams are symbolic and personal - what does this mean to you? It doesn’r really matter what it would mean to us, because we’re not you.
Try meditating to go back into the dream, and ask the people who they are and why they look one way.
Also recall what you did in the last few days - you may just be sorting memories from something you saw that don’t have any significance otherwise.
The other thing this could be is a wish-fulfillment dream. Most dreams are a combination of things, with memory-sorting and wish-fulfillment being the vast majority of what we dream about.
Pay attention to how you FEEL about it - emotions are important in dreams. Notcaring about them implies you knew they weren’t real.
Here’s a collection of threads on dreamwork for more info:
[Moved to Divination and added {Dream] tag to clarify this isn’t about actually having children]