Several of the stores I frequent have “mask required” signs on the door. Things I have observed at those stores:
Sweaty woman who apparently has just been mowing her lawn approaches the store. Pulls grimy homemade mask out of her bra, puts it on.
Guy in the store wearing a disposable mask with several sets of oily fingerprints on it.
Man and woman pull into parking lot, take homemade masks from where they’ve been hanging on the rear view mirror (probably since the last grocery run), put them on.
And how many of you boingers who have homemade masks wash them thoroughly every time you get back home? (You can lie about it, no one will know.)
Until we get to the point where the store can give every entering customer a new disposable mask, the more that masks are required, the more it’s going to approach “virology theater”.