Masking, (now) voluntary, psychologically "sticky," clung-to like a Linus blanket, is indicative of one of the real issues---acceptance of small requests that (invariably) lead to acceptance of larger requests. There is a psychological principle, maybe even part of a series of observations made about hostage behavior and/or torture techniques, that speaks directly to the practice. Put in terms of pop culture, no matter how tempting it is to accept that cool, refreshing water, the answer must remain, "There are four lights!" Any other admission, however small, to the contrary, leads to more submission. At least, that's my view.