Most towns still have a “wrong side of the tracks.” Maybe a feral cat or seventy. Various severities of homelessness.
City administrators try to keep those cities nice and safe, with regular garbage service, good road signs, but that takes revenue. Occasionally they get really lucky, maybe with a cute little town square. Maybe a nice restaurant moves in. Maybe it’s decent antiquing. A few young, cash-drenched professionals arrive. They spiff up local houses and pay higher taxes, that’s good for everyone, right?
Those poor people in the area should be grateful for the privileged newcomers, willing to cast off life’s luxuries and slum it. Except, as tax income increases, so can rent. So can the prices of certain amenities. Some residents can’t afford to stay in the place that was theirs, scrappy as it might have been.