If I wouldn't be losing any money or benefits, but I would be gaining a day off, then absolutely I'd take it. However, that's not free to the people who pay me, and one needs to look at sustainability. My workplace is 24/7, needing a certain amount of coverage each day. Working four days rather than five means more people need to be hired to provide ample coverage. Since this isn't a job that just anybody can do, they need to find qualified people, then train them up (initial training is a month, but there's still a lot of learning to do in the first year). There are costs associated with that - training, pay, benefits, etc. So even if everyone hired in were to fully make up for that (eventually), it's more overhead for roughly the same amount of productivity. So from the perspective of the people that pay me, I don't see how it makes sense. If it doesn't make sense to them, then I'm looking out the corner of my eye for changes that will negatively impact me.