I think it’s important to consider the possibility that people are engaging in other risky behaviors or not properly wearing their masks. Also, you have to consider the portion of our society that is intentionally trying to undermine the effort to slow down the virus. There’s a large group of people that actually went around wearing lace masks so they could seem to be abiding by the ordinance. It’s not clinical evidence because these other factors are not controlled.
Here is a video that demonstrates the amount of particles released in the air while using various types of face coverings… https://www.youtube.com/watch?v=DNeYfUTA11s
To me, this is simple… if I eliminate some of the droplets coming out of my face, by putting a barrier between my face and others, then I am decreasing the risk to others. The more steps I take to do a better job of that, the better… Our parents told us to cover our mouths when we coughed, and we tell our kids to do the same… Why? Why are we not divided on that? Why are some of us not patriotically coughing in the face of others? The only answer I can come up with is that nobody politicized covering your mouth while you are coughing… nobody made that a battle cry. So we do it because common sense, in the absence of politics, suggests it’s probably helpful to others.
3 ply cloth covers do a pretty good job and are breathable.
One of many studies to consider: https://www.nature.com/articles/s41591-020-0843-2#Sec3
another that covers spread in countries that have social norms of using masks appropriately: https://www.researchgate.net/publication/342198360_Association_of_country-wide_coronavirus_mortality_with_demographics_testing_lockdowns_and_public_wearing_of_masks_Update_June_15_2020
I want you and everyone to look at all the science… the actual science… but, more importantly, I would love to see everyone just care enough about their neighbors and families to not put them at risk until they know for certain… the ICU’s are full right now… that’s a fact… If I see smoke billowing out of a building, I don’t just saunter in like nothing is happening… I take precautions… In the ICU’s, the smoke is visible.