Then we do what they do. Consistent shame for anyone not following the new norm.
You'll never get 100% anything. Heck, I finally encouraged one guy at work, who is a daily cougher to consider wearing a mask, so he doesn't cough on everything, since his son is an EMT.
I didn't even directly tell him to do it, I just mentioned that's how the country could stop the spread. He did it today. Wow.