How the hell does 32 hour work week benefit anyone except lazy people?

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I think Bernie Sanders or some other politicians trying to make a 32 hour work week. That's pretty dumb though unless all houses, rent, food, and literally anything we pay money for becomes 40% cheaper which definitely won't happen. And employers will refuse to pay overtime if people work 40 hours cause they feel like they're getting screwed paying that 8 extra hours as OT when before it would be regular pay. But yeah this is unrealistic unless like I said government forces every single thing to become 40% or maybe even more cheaper in order for the country to sustain 32 hour work weeks