It's also totally natural to sit on art, if it's convenient for sitting, even if it's many centuries old.
A decade ago I moved to California, and it's a very stark contrast there. There is so much greenery and similar that is just "off limits" and made for just looking at it.
Generally, in California things feel much more "fenced off", even without any actual fences.
However, one of the main parks has similar areas where you get 10s to 100s of people an hour, or people covering it up for extended periods of time for picnics, etc. If population was all that mattered, the park would be barren and the path would be lush, rather than the other way around
That is simply not true.
Beautiful patches of grass must have some value to weary passerby's eyes.
But surely the grass would be more beautiful AND comforting to that demographic if it included some interesting looking sittable rocks.
Condense 24 hour cycle for homeless people into a 3 minute show.