I don't understand it. I understand the imperative for social distancing, of course. But it seems like enforcement has been targeted at relatively low-risk activities (hanging out in large, public outdoor spaces) and not at all at the high-risk ones (e.g. where I live in Brooklyn, half the laundromats have closed and the remaining half are constantly crowded).
I can't help but think that part of this impulse comes from a certain sour-grapes mentality that sees people trying to enjoy themselves during a trying time and wants to take it away from them. A real public health intervention would ensure that all necessary activities - getting groceries, doing laundry, going to work - are just as safe as going to the park.