São Paulo is ridden with crime, poverty and homelessness, the traffic is atrocious, the air is terrible, the public transport is built for a city 10% the size and the infrastructure is stuck in the '70s.
Didn't the city come close to running out of water? ... per ChatGPT: "The most notable crisis occurred between 2014 and 2016 when the Cantareira water system, one of the main sources of water for the metropolitan area, reached critically low levels."
Running low on water in São Paulo would be a huge disaster.
But I do enjoy the lack of billboards.