Reading this it made me realise that I’m in a slightly different environment. I’m from the Netherlands, a very small country in Western Europe. Since this tiny country feeds the world a lot of us speak English. English is important here because pretty much every business does cross boarder business.
In cities like Amsterdam it’s very likely that you won’t be able to order your coffee and broodje kaas in Dutch.
What I’m trying to say is that I understand better now why people would code in their native language. Like you said, Brazil is very big and there might be companies that only deal within the country.