IF you think about it, a 4 day workweek saves money for many.
The employee saves 20% of their gas expense—20% of their wardrobe expense—20% of their lunch expense, etc. It givevs them more time with their families.
I have worked a 4 day 10 hour day workweek and I came out ahead at the end of it all, with 20% less expenses.
The employer saves the cost of overhead running the offices for that 5th workday.
Government officials(including governors and Presidents) don't think about what will help their people, only about what helps themselves to get more votes.