Wear goggles, if you are very worried about every possible orifice and every possible germ.
I think it’s very useful to wear the mask to protect you from the most likely routes of infection - especially if you are also being careful about distancing and keeping your hands clean and off of your face. It also protects others in the event that you are shedding.
There’s no perfection in this world; but there is a lot we can do to mitigate danger.
Personally, I kind of enjoy the ‘bandit’ look. Whenever in my life would I have otherwise had an opportunity to go about like that? I’m not really into robbing banks or Old West trains :-)
believe it or not, your eyes are the main route after you sticking your own dirty hands in your mouth.