Those buttons that I’ve seen are not labelled “Handicapped” or “Disabled” … I thought they were meant for anyone struggling with the door, including non-disabled elderly, or people carrying children or packages.
But they’re usually way off to the side, set low, and I seldom see anyone use them…. not even those they were intended for.
Using it, though, deprives no one else… unlike “Handicapped” marked parking spaces or motorised shopping carts, there is an unlimited supply of door openings.
So what’s “disgusting” about someone pushing a button to open a door?
Maybe that woman is weakened by illness, or has arthritic hands, or a bad back… or a neurosis about doors…
Betty and Bub could have just walked on through with her…
those doors will usually sense your presence and remain open, or if not, you can give them a push.