What would happen if the whole world switched to a 24 hour work week?

Already posted about how I believe in going one step further than the 32 hour work week and that it should be four by six. Nobody should work 8 hours a day, it's slavery, and don't get me started on 10 or 12 hours. People should be able to actually live their lives.

With that being said, I realize there are giant logistical considerations if we cut the work week by almost half. It would mean businesses would not be open for nearly as long, because it's not like every business could double their staff. This in turn would affect how much people could accomplish each week and would also mean we as a whole would have to make some sacrifices in convenience among other things.

Here are some major points I have thought of:

1. If the work week were shortened across the globe, in an ideal world, there would be a massive hit to general goods production (and certain foods for sure). Overall consumerism would have to be dialed way back which isn't a bad thing, but an adjustment. There would be less variety of products and fewer products overall. We would have to settle on more basic versions of things in exchange for an easier life

2. With businesses being open for way fewer hours, it would still not solve the issue people have of being able to go to appointments or just get general errands done because everyone would still be on the same schedule, just more compressed. Perhaps with shorter working hours per person it would be possible to hire a few extra people and stretch out operating hours for some businesses to where people would have more time to run their necessary errands. This is a decent logistical gap but I think it can be partially solved. In addition to a 24 hour week, everyone would also have very generous PTO, mandatory for everyone, which I think would take care of most of it.

3. I still don't know how to answer the question of critical jobs: hospitals/medical services, power plants, first responders, trash pickup, the list goes on and on. I would hope that there would be people willing to take on these jobs in exchange for much higher pay or some other significant benefit. I think this is probably the biggest gap in my proposed work week because quality of life drops for everyone else if we don't have critical services fully staffed. Open to thoughts on this.