Its profoundly disingenuous to ask you to provide evidence of something you claim aside from your personal feelings. You are literally using a sanitized version of a segregationist argument, you're just being more vague with it. Some of the areas in the world with the least amount of crime have mixed zoning. The problem is social conservatives on this board content that this is because of homogeneity, as opposed to that the design of the area itself lends to there being less social discontent, and presence of robust social resources. Ive lived in both urban areas and suburbs because of the split of my parents, suburban kids were always doing just as terrible sh*t as urban kids, and abusing substances far more. From my experience the only difference between suburban crime and urban crime is kids in the suburbs get in trouble with the law less because it's less heavily policed. Aside from that you're just complaining that a place might be open later than you personally like, and that people might be having a good time there.