That is our culture s custom but that was not the custom of Utah's prehistoric people. Very common question from Junior high and High school kids. About the same as a school teacher. Very common question with all ages. I usually start by saying that archaeology is pretty much everywhere you go across the entire world.
People generally expect to hear Egypt, Israel, France, Greece etc.
I tell them North Dakota, Wyoming, and Montana. Good way to address the notion that all archaeologists go to some far off exotic place to do fieldwork. Recently used the South Temple example to talk about prehistoric archaeology under the modern city.