I went to a big shopping centre where I can see there are four charging spots near the entrance.
However, two of them parked there were not charging at all. I guess it was just because it was close to the shops.
Personally, I don't drive an EV but raised my eyebrows seeing those dogs in the manger.
Maybe the charger is broken? Got a new EV two weeks ago, have tried 3 public chargers so far, only 1 worked (the Tesla supercharger).