There are two things you need to be careful with in urban spaces. One, you must be careful about letting your life intersect with the lives of too many other people. This is for self preservation. Secondly, you must try to know people only on the surface–do not try to know them truly. This also is for self preservation.
Both these call for a superhuman strength. I think people should receive medals in numbers to the extent they are able to achieve these.
But we all fail, eventually, sadly.