Gambling is flourishing not because we're in a low-trust world, as the article says, but because the living conditions of an increasingly large part of the population as such that they cannot hope of ever achieving a comfortable life. We're returning to the social dynamics that dominated much of history (if you consider how much gambling was a scourge, from ancient Rome to thousands of years of history in China).
Still, yes. I can trust that if I were in an accident, people passing by would be decent enough to try to help me. To see a place where you'd have the rational expectation of being robbed by passers-by, see Russia.
