You can limit your exposure. Lots of people only wash their hands when they use the bathroom, if even that. They touch their faces and mouths a lot more often

You can limit your exposure. Lots of people only wash their hands when they use the bathroom, if even that. They touch their faces and mouths a lot more often than they think. If they can learn to change their habits, wash their hands regularly if they go in public, and work from home more often if allowed by their employer, I'd say those are meaningful preparations.