Freight and truck are the big ones. Millions of truckers and trucks need to roll to move things. We need truck stops and gas stations to stay open to keep these moving. We need distribution centers to stay open to load and unload trucks. We need the factories that make toilet paper and baby formula and canned soup and N95 masks to stay open and fully functioning. We need the farms to stay open and the fertilizer and seed operations to stay open to provide to the farmers that are growing the crops. The pig farms and the cattle farms need to stay open and they need to be supplied to provide for meat in 6 months. And all the follow on industries that support these things.

You can't just stop all this.