Sure would save on LAUNDRY!
Trouble is that the folks who are that sort of people are most often the sort of people who really shouldn't be leaving their bodies uncovered. ("Cruel and unusual punishment" being unconstitutional and all...)
I'm sure it's fine for the "beautiful people." But I don't care how much someone claims that all bodies are beautiful. Sometimes that just doesn't wash. Some bodies are just plain scary, if not ugly. (And I'm not one to flaunt mine, because I don't wanna scare the animals.)
Steve