I have to wonder what effect changes in clothing have had over the decades. The steady trend has been for people to wear less and less clothing since the 1800s,

I have to wonder what effect changes in clothing have had over the decades. The steady trend has been for people to wear less and less clothing since the 1800s, right? But the word "clothing" doesn't appear anywhere in the paper. I also feel like Amish people living a very old-fashioned lifestyle might make an interesting control group.