You made a bold claim that mask work, my response was yes if done properly and cited a link from a university but I guess since it wasn't the actual study and just a news release it doesn't count?This only tests the effectiveness at stopping aerosols, but that's only part of the puzzle. You can see even in the press release for this study (which is what you linked to, a press release, not the study itself) that they do acknowledge that the remainder of the aerosols are pushed to the sides. That's important because the mask is not the whole picture, it's mask+distance+hand washing. So if when you exhale the aerosols you exhale halo around you instead of six feet in front of you, you have decreased the probability of transmission over and above what is gained by merely stopping the emission of aerosols.
Combined Effects of Masking and Distance on Aerosol Exposure Potential
To quantify the efficacy of masking and “social distancing” on the transmission of airborne particles from a phantom aerosol source (simulating an inf…www.sciencedirect.com
This being an actual publication and more important, conducted not by physicists but by medical researchers, they examined the impact of distance plus masks on total aerosol and particle transmission. It works. It's not a secret either, wearing a mask or face covering has been a part of the protective recommendations for not just healthcare workers in hospitals but parents in delivery rooms, EMTs on site, and ill people (primarily in east Asia where it is the polite thing to do to decrease the risk of passing on your illness to another).
But even if you think the Mayo clinic's researchers are shills for Big Textile trying to sell you masks, the press release you linked still confirms a reduced ability to spread disease while wearing a mask. If your takeaway is "it's not 100% so it doesn't work" then you might as well stop wearing a seatbelt, disable your airbags, and tell everyone you know to stop bothering with providing helmets and armor to our troops because they don't stop 100% of bullets.
If you cough or sneeze and your mask still allows 90% of droplets into the air then its not effective and to your analogy I wouldn't use a car that had seatbelts or airbags that had only a 10% chance of working.
Its a lie to tell people that if they wear any face covering that it will stop the spread like some magical dream catcher.
To me that's dangerous misinformation because you are giving a false sense of security to people who really think they are safe when in reality they will still spread the virus.