Without doubts, the main problems are security, infrastructure and poverty.
The first item, I can tell that here we don't have places where it's possible to live without that pressure of making everything fastly in order to reduce exposition, for instance, when opening the gate I do it quickly to assure not only my security but to keep my home and family safed.
The second item, there's no doubt this is a real problem in almost every spot, as I'm not a rich person, far from that, I live where the ground isn't so good, there's no great hospitals and entertainment options, however, I cannot deny, there're some positive aspects, like good drugstores, supermarkets and thinks like that. Infrastructure is a though nationalwide issue.
The third one, poverty, oh my goodness, it'll be a problem forever, I don't see good improvements in a near future, however, as everything is possible, perhaps that item will become less markable.
By the way, my city is Santa Bárbara d'Oeste, a countryside of São Paulo, near Campinas. To be honest, despite evertything I told, I do like this place because it's where I grew up and where I go home when I want to see my parents.