We have all seen the discourse on places like reddit or whatever, where even the positive comments about rough neighborhoods is like "just keep your head up, don't use headphones, pay attention and you will be fine"
Like how much of this is just white people playing out fantasy scenarios in their cop brains? I feel like most of "bad neighborhood" discourse just comes down to 
Like sure there are places where you are more likely to get your place broken into or whatever and systemic racism tends to result in certain outcomes but I feel like most places like this are in the minority, and in fact this must be the case or gentrification wouldn't happen 
I think this one is actually somewhat true, not because they're white but because they don't know how to act to keep themselves safe. Apparently criminals commonly choose victims to assault based on how they walk
You can usually pretty easily tell if somebody is scared/unathletic/uncomfortable while walking in certain neighbourhoods
And just anecdotal evidence but the techies I know who chose to live in the poorest neighbourhoods in SF apparently get harassed pretty often but the friends I know, which include women and older people who have to live in those same neighbourhoods haven't had any troubles and are friendly with their neighbours
So I was robbed in SF many, many years ago. In retrospect, it was likely because I looked like an outsider and I was in an unfamiliar part of the city late at night after a comedy show. It fucking sucked, but I was prepared, with money and a BART card in my shoe (as my friends from Oakland had advised me), and a hundred dollars in the wallet so they didn't take my ID (Classic take the money, just please don't take my ID it's a pain in the ass to get it from another state). All they got was my shitty phone and some cash. I didn't even bother filing a police report, as it would have taken more time and they never would have caught the guy anyways.
That said, I went back there a year later after acculturating to the Bay area and was just fine, didn't get harassed or anything for being in the 'wrong neighborhood'. Just wrong place, wrong time probably. That said, getting to know some of the people who grew up around there, tech-people are seen as 'gentrifiers' and 'rich' regardless of the actual circumstances (though tbf they are probably both those things) so they are equal opportunity for both punks and neighbors to fuck with, because they are rarely seen as part of 'the community', which again tbf they do not actually see themselves as a part of.