It'd be nice if I could go out to eat on Fridays, but if everything just shut down on Friday I'd personally be good with that, too - I can imagine a world where nearly everything except maybe emergency services just took a day off. I would welcome the guilt-free opportunity to do absolutely nothing "productive" for one day a week.
That's Sunday in places where this is normal, we could just extend that
Ask a German or a Chilean how they spend their Sunday
It's not that everything closes, Malls open (Less hours) Chain Stores open and anything medium to large does, still, enough places close to make a difference, and also make the incentive of paying more to people working those days