Underground societies on Dayside

[jaddeth below she/her]

With dorim vines and many plants and water surviving underground on Dayside, is there a chance that there are human societies that developed - almost like classic fantasy dwarves - and only ever dwell underground in caverns etc because that is where all the water and plant life is to be found? I wonder whether it could be something that Brandon could explore in the new prose version he intends to write. I think it makes no sense for no people to dwell close to where the water sources are - after all, ancient civilisations were mostly found around rivers or good sources of water.