I am a bit disappointed that it's always those grand palaces. I also want to see the environment in which average people lived, this is harder for me to imagine than those grand temples.
Average people lived in huts in the countryside; peasants still lived in physically similar huts into the twentieth century. (Maybe they still do!) I assume photographs are available.
The population of a city spanned a wide economic range, but if you want to talk about an "average person", cities didn't exist.