Earlier quoted context omitted.
NYC is one of the safest places in the US... and even with fairly poor mass transit system - it's still is incredibly good by American standards. I moved from NYC an hour north, to be more isolated than the "impersonal big cities". I barely know any of my neighbors - because there are no sidewalks and everyone is forced to drive for anything. Car dependence kills people, kills communities and reduces your QoL.
NYC mass transit is poor? I've never lived there, but during my extended visits, it seemed like I could get anywhere in a reasonable amount of time.
In American terms - it's probably one of the better ones.