But you can't just press the pause button for s bit and then resume, the world doesn't stop turning. While we are all stuck at home we are still consuming food, water, energy, all manner of services, and somebody has to make or provide all of that. There is a whole supply chain involved in getting food on our tables, from the obvious stuff like farm workers down to all of the equipment makers, mechanics, chemical companies, fuel, truckers, road maintenance, spare parts, and dozens of other interconnected pieces. The people living in densely populated urban areas which is most people are utterly dependent on a functional economy for survival, we can't just shut it down. Disruptions cause ripples that propagate throughout the whole system and the effects can be catastrophic.