> But I got sick of the fights [...] got too many concussions

While lots of people in cities live very different lives, either you were very unlucky or this is your own fault. Or do you think the majority of the 8 million people in NYC have gotten a concussion since moving there?

The filth, yeah, it's neighborhood dependent but NYC as a whole (really anywhere other than right on Central Park) has a lot of room to improve. Pretty rare to see needles or human excrement (dog excrement is way too common).