That sounds like a good idea driven by the free market.
Yesterday in SoCal the regional market chain named Northgate-Gonzalez, announced special hours for seniors.
Other markets changed hours, too, including Walmart--extending some store's hours, reducing some others.
within abour 4 miles, we have Trader Joe's, Walmart Neighborhood, Sprouts, Von's, Albertsons, Sprouts, Grocery Outlet, Aldi, Costco, Sam's club, Stater Bros., Smart & Final, Target.
Further a little bit incl. Gelson's, Whole Foods
Enough variety in America's free market system?