Especially in some parts of Japan, their obsessions with culture and heritage is very cool. Something like this is always cute to encounter, and it’s weird cause I thought it’s rare up until I visited Japan - https://x.com/kiyotoshi_y/status/1179243144363331585. That being said, I have Latino friends who hated those parts of Asia because they need “hot blooded friendliness culture”. Which is totally cool, to each their own!
Ultimately, the decision to visit a destination should be based on personal interests and experiences.
I for one am suspect at being able make a good friend that lasts forever in 5 minutes. That sounds more like power dynamics in that you had something to offer them then some kind of mutual friendship based on shared interests. That said to each their own.
Whereas I am guessing you had no expectation in Brazil and were pleasantly surprised. I'm sorry you didn't have a good experience though I stand by my statement to each their own. Tough to compare societies/populations/cultures based on a sample size of one.