Either that or a pointless waste of sidewalk space.
it looks like it can serve as benches… so it’s not totally useless.
If that crossed my path, I’d nonchalantly sit on it and slowly slide off. Once I hit the ground, I would stand up, sit, and slide off again. I’d probably continue doing that until a crowd formed or the police arrived…
Here in Phoenix… you would be able to cook eggs on them! Anything highly reflective is deadly here.