Think about it. A few decades ago, a Man could work 40 hours a week and support a spouse and kids. Then Women starting entering the workforce. Which resulted in real wages going down as the labour supply doubled. Women entering the workforce should have allowed Men to work less hours. Instead, we have a situation where everyone is working and kids getting neglected. Halving the workweek would once again allow a 40 hour workweek to support a family.

And this needs to be enforced. As in many office jobs right now, people work 60-100 hours a week, but only get paid for 40