Only if I could get away with it. Seriously though, there are a few of us who go barefoot at the office (not when we're with clients). Of course, this IS Arkansas. 
Our district has had "pajama days" for several years in the elementary level where the kids are encouraged to wear their PJ's. We never allowed our girl to participate, we consider this foolish. Would you wear your pj's to the office as an adult? Hell no, you'd get a free trip to the mental health facility.
At my office, when they first started casual days, they put in a dress code. No shorts or jeans, shirts with collars, that kind of thing.
One guy had a pair of pants left over from the hippie era, that looked like pajama pants--purple and green stripes, loose. They didn't violate any of the rules, so he wore them.
Only if I could get away with it. Seriously though, there are a few of us who go barefoot at the office (not when we're with clients). Of course, this IS Arkansas.
wait, seriously? you just ruined the fun for your daughter like that because you thought it was DUMB? I’m 15 and everytime my elementary/middle school had pajama day, my parents agreed even though they thought it was retarded. I may be wrong but i’m guessing your kid’s curfew was 9:00 at night during the summer? just wondering because mine was 11. Pajama day is a very important part of going through elementary/middle school (jk but its funnnnn) and your poor dauhter missed out on it.. disappointing... and i just might wear my PJ’s to work and to classes in college thank you very much!