Israel

one day humans will succeed in making humans irrelevant.

Mixing uses and density, in general, work best for individuals or families that are comfortable interacting with others  and who don’t crave large tracts of personal space. 

People in mixed-use environments may feel less of a sense of isolation  as places abound to walk, drink a cup of coffee, buy a loaf of bread, etc. where one might see other people and/or interact with them, as opposed to staying cooped up in their house or apartment because there is nothing to do outside of it.