Living aboveground is a normal thing for people except those live in Coober Pedy.
They live in house under the surface called dug-out to hide from unfavorable climate and flies.
Dug-outs can be very useful in areas similar to Coober Pedy where it is always more than 100ºF.
Notwithstanding its benefits, these houses have very bad disadvantages that make them not valuable in rest of world. Its lack of fresh air and natural lights, the complication to get plumbing and electricity, and limited building areas the main reasons why they are not popular.
First and foremost disadvantage of underground homes is it does not have enough air flow and natural light due to its location.
Basically, Dug-out is just a big hole dug into the underground.
Because of that it allows little amount of natural light and fresh air go into these holes.
If the surroundings do not have enough fresh air and natural light, it affects straightly to human body.
Secondly, Having plumbing and electricity in underground homes is much more complicated and expensive than aboveground homes.
The interior of the house is made of mainly rocks.
That means it is very solid and requires special skills, tools to get plumbing and electricity along the walls.
On the other hand, it is financially bad for the person who is going to live in one of those houses.
The last drawback is dug-outs can be easily built in places where there are lots of hills.
Because it is easier to use hills to create dug-outs.
Therefore, its building area is limited due to availability of hills.
For example, it is almost impossible to own this kind of house if the place does not have any hills. However, Building dug-outs in underground by using special devices and techniques is possible. But it costs a lot.
To conclude all of these above, it is very right choice not to live in underground. By choosing living underground house will bring serious diseases. Having fresh, hot, and cold water and electricity is a problem.
Also, its building areas are limited depends on availability of hills.
All of these points telling me that dug-out house is not suitable for people exclude Coober Pedy residents.