There's plague on the loose. The easiest way to avoid it is to stay away from people that have it. We cannot tell who has it at a glance, so staying away from all others in public makes sense. Where close contact is unavoidable masking up and washing up are really the only tools available to us, doing so makes sense.
The shutdown was a terrible idea, it introduced too great a level of economic instability without a reasonable mitigating strategy to keep money, goods, and services flowing in the following disruption. However, ignoring the threat posed by an uncontrolled pathogen entirely isn't a workable strategy either.
Covid shows...or should show us...how vulnerable we are to a bad bug getting loose. There are worse ones than this. Working shoulder to shoulder and gathering in large groups creates a breeding ground for these things, so it makes good sense to develop alternative ways to socialize. Our old normal is inherently risky from a public health standpoint, and we should consider that carefully when considering what out new normal should look like.
I can see the skeptics' point that it's far less common sense that just any old rag over your face will do. I don't think it's a binary. "All we can do" doesn't make it a natural candidate for being mandatory. Unless we have some standards around masks that make good sense, mandating the wearing anything that passes as a "mask" doesn't make sense. Like I said, it's just a box that gets checked. My wife bought a mask made of moisture wicking material that's nearly see through. I doubt that's gonna work. But it'll check the box. And it's easier to breath through. So that's a plus now that they're mandatory.
One thing I do agree on, we would probably have been better off if they'd have just required the checkbox instead of shutting things down. But back then the CDC was too busy being wrong about how the virus spreads, and telling the prepper types that they shouldn't e buying the masks, because they don't work. It's surfaces. Now it's droplets. Hopefully the evolution in the theory of spread has evolved closer to reality. But when we have health officials caring more about their precious greater good than just telling people the truth, who knows?