Scenes like this can lull a person into a false sense of security regardless of where they might happen to be in the world. An empty park in the middle of a busy city during the late evening should be a welcome respite from the hustle and bustle of the daylight hours. Yet here in Japan people tend to stay away from the parks after sunset to avoid people who might do them harm. This is fine by me, though, as it means I can enjoy walking through a scenic area on the way home from work without dodging cyclists, runners, or anyone else that might want to spend some time closer to nature.
There may be safety in numbers, but there's solitude in none.