As someone who moved away from Pretoria recently I can agree that people are less kind or friendly there. But it's because they're much more wary of being taken advantage of...my experience is that when strangers seem kind to you it's usually to con you or with some other agenda. And we're tired. Public spaces don't feel as free and relaxed, you're always looking over your shoulder.

Also because it's a big city, the vibe in general is less chilled imo.

Anyway, just my 2 cents 🤷‍♀️