For me the stay at home order is simply something done to give hope and prevent a societal collapse. Hope in the form of time. Hope they can find an effective therapy or vaccine that will save us from this. It may be sold as flattening the curve but really what that term means is having longer to put bodies in the ground(less an effective therapy or vaccine).
At this point it is unlikely that you will not get this. Staying home does not prevent you from getting it, it lowers your odds and buys hope. It also buys a bit of time to figure out things like can you catch this more than once.Which is likely at this point given studies in South Korea,Germany,Japan,all have had such cases.
How fatal is it? What long term health effects are we going to see?
I think the government knows more than we are being told. Classified briefing followed by congress members selling all their stock(illegally) and then all of congress going on an unscheduled vacation out of "an abundance of caution". Not buying that.
If we had the same information would people push to go back to work or ask to stay home?
More fear mongering.