Technology has made some jobs obsolete, and the end isn't in sight. At some point the unemployment rate could grow so high that the only way to prevent riots and keep the workforce gainfully employed will be to reduce the FT work week, perhaps by job sharing.
When I was in my early twenties commuting to NYC I would have gladly taken a pay cut to work a 4 day 10 hour work week. I walked a mile to the subway in heels, stood on the subway for up to 45 minutes in heel, climbed up all those stairs in heels, walked another four blocks or so in heels and did the same thing on the way home. It was the 1970's, and if I saw one of the old black trains lumbering into the station, knowing I'd face another summer ride without A/C, my heart would sink.
One day I wound up at the podiatrist's with searing, shooting pains up my right foot. We were so foolish in the 1970's. No one wore sneakers and left heels in their desk drawers.
Orthotics were the cure, but when the pain ended I was back to my heels routine. My commuting days were a bad memory.
No wonder why people who worked from home during the pandemic resist going back to one hour plus commutes on overcrowded subways.
You do know that unemployment rates are the lowest in decades, and participation rates are also among the lowest in history. Currently, there are TWO jobs open for every ONE worker who is looking for work. Even this extremely low unemployment rate is misleading, since many are unemployed because of mental issues or cannot pass drug tests.
Now, in 2023, we need MORE workers, just as do most of the industrial West, all of whom who have aging populations. We need more tech workers. We need more farm workers, more construction workers, and more hospitality workers. We need more electricians, more plumbers and more truck drivers.
BOTTOM LINE
Yes, the future will indeed be shorter work weeks. However, this is NOT a current need. The current need is more workers, amd pre qualified workers.
Just BTW, lots of companies would love to have more workers with fewer hours, so that they can pay lower benefits. Many employees are purposely limited to below 32 hours for that reason.
FINALLY, many insist on working from home. Many companies resist. If the market forces more companies to allow this, there is a very, very easy solution. If particular jobs can be done efficiently, then these workers can just as easily be located in Poland, Estonia, India or the Phillipines. If forced, companies will develop models for off-site workers. This will NOT benefit the US workforce.