Depending on the situation, the worst site for a bench would most likely be on a hardcourt. A hardcourt is a playing floor where a sport is being played. Examples of sports that used a hardcourt are basketball and tennis. Since the hardcourt itself is a limited amount of space, placing a bench there would most likely get in the way. Also, the people who would sit on the bench might get injured since they are so close to the game.
If organized sports are played on this surface, the bench would be a distraction and obstructive the view for the referee or fans watching the sport. There are plenty of other places to put a bench. A bench would be more beneficial if it was placed outside the hardcourt or in the grass.