Let's face the facts. We can't even get the majority of the public to wash their hands properly. Do you really think we can trust them to put a mask on to the standard a surgeon would, which is effectively the standard you're looking for? No spreading of anything from the person wearing it. That's the point of masks.
Then you've got the ones wearing fabric masks. Sure they look pretty, do they do anything? Doubtful. Probably let's out a fair amount more than what you think.
I'm not convinced on masks being useful. In China, a lot of people wore masks there in the cities because of pollution and no doubt health reasons before covid anyway. And yet, they still had a hell of a lot of cases, and I doubt we saw the true numbers. They just had to lockdown Beijing again because of another outbreak.
Wear them if you want, but you should be washing your hands immediately after putting it on, never touching it or your face, washing your hands after removing it, storing it correctly in an airtight container or throwing it away correctly (not the ground like many do). If you are wearing gloves, you don't touch your phone after you out them on, or your face. You wash your hands prior to putting them on and after, including wrists not just hands. I doubt the majority wearing masks and/or gloves are doing any of that. There will be a minority that do, but most won't.