It's worth to take a look at Karl Marx again. I'm not referring to any existed entities, but the model of pure capitalism is so problematic as he pointed out.
The usual reason against shutdown is because people have mouths to feed, mortgages to pay. But seriously, most of the products and services people are selling not really important or even any useful - that's why people have to advertise them so hard - it's not as straightforward as advertising cars, houses, and Coke. But those jobs are very important to those individual employees because it's their only source of income if their business were shut down, they wouldn't have roofs over their heads.
So the capital is the way to let people claim their part of the economy. It's so vulnerable that it's not even doomsday yet and people start to lose their source of income, and even without shutting down things. If we're going to shut down non-mandatory industries, people from those industries would get broke immediately - it's so deeply coupled so effective measures could not be taken.
In a perfect world, less than 10% of people working, or everyone working one day per week could feed everyone effectively. As automation goes on, the percent could keep shrinking. As a comparison, at the end of the day of a capitalist world, most of the "meaningful" jobs would done by very few persons because of the automation, and the rest of the world can only earn money at their mercy by doing "barely meaningful" jobs. Other than that, those who can't even get "barely meaningful" jobs have to working hard on futuristic versions of TikTok trying to become superstars - it's their only way of claiming their part of the economy.
Furthermore, the well-connected people get tested first as Trump suggested (or naturally happens in the US) is also a capitalist way of doing things. If we take Asian countries as an example, the testing kit is soon promoted as strategic resource mostly instructed by the government, which should eventually come from health care institutions, they have ideas to allocate those test kits in order to make maximum use of it, instead of blindly testing people back and forth.
If Karl Marx is not for you, it's always worth taking a look at Singapore where they did most things correctly most of the time. It's perfectly balanced in economics, politics and many, many other aspects (Though usually bashed by Western media as an authoritarian country). People can afford to buy houses, education is excellent and at a reasonable price, eating outside is cheap and easy, health care is affordable, and people are relatively free. Everything is carefully planned and designed by the government.
As a comparison, at a first glance, Hong Kong seems to be similar to Singapore to those people who haven't been there, but Hong Kong is a more western-style democratic society compared to its neighbors (at before 97 if you protest). But the rent is out of control, things are messier, there's no specific plan for things.
Again, I'm not evangelizing communism but those problems Karl pointed out have been overlooked largely nowadays.