The virus doesnt last that long on most surfaces so if there is any contamination it is temporary and as long as you wash hands or use sanitizer after touching something that may be infected, it's not a big deal. And just because a virus can be detected on a surface doesn't mean that it's enough to infect somone.

In my state the masks are often required in stores. Not everyone who wears one is "terrified". I wear a motorcycle helmet even though there is little chance I'll get into an accident. I do not wear mine out of fear, but precaution.