Masks and face coverings have been mandatory in Delaware since April 28th IIRC. There should be no onus upon the employees other than for them to be wearing masks themselves. The customers should be wearing masks because its mandated by the state. If they won't comply when it's mandatory, I doubt very much that they will respect any type of common sense measures once the mandated restrictions are lifted. Call me cynical, but I have very little faith in the ability of our population to do anything for the common good if they feel that they aren't directly affected by the issue. The sad part is, EVERYONE is directly affected by this...unfortunately a lot of people will ignore it and deny it until it swims up and bites them (or their loved ones) on the butt. And then they'll cry and wail, and complain "why didn't anyone DO anything??!!!" because it'll be everyone else's fault but theirs. If I end up being wrong, I'll be more than happy to admit it then.