Imo one will not be "sick for months", seems a bit of hyperbole there.
You are correct in that the immune system functions very nicely on its own, though each is different in their ability to fight off the nasties.
Unless one is wearing an N95(Not an KN95 Chinese junk), germs will penetrate the fabric.
There are several stores in town that require a mask, all the grocery stores here require them, If one tries to enter w/o them they are told to leave.
I wear a mask in these stores .
As a kid I ate lots of good dirt, and have had numerous puncture wounds, cuts & scrapes over my lifetime. I eat healthy, no junk food.
Imo it's a travesty that state gubermints are killing small businesses when reliable data on this is scarce!
Here in Illinois it was stated right in the local paper that CV 19 deaths are commingled with other underlying issues for ease of reporting.
So if one has CV 19 & has terminal cancer, Illinois will call the death due to CV 19!
It was further explained that after all this **** blows over the real number of deaths will be computed....
It has always been my belief that the threat never warranted the response. This has been a huge overreach by govt
Or in other words the mask and the Covid 19 is a complete farce put on by people with out any real meaning. Thanks