Sure, maybe it's not bad in Brazil, but there are many places where it's not super good.
In Syria and Jordan, it goes off for about 3 hours every two weeks, or something like that (not scheduled, just randomly). I think the same is true for Egypt. I've heard the same about India. In fact, I've heard from a trusted person that computer/software offices in India have their own backup power generators. I can only assume the same applies to hotels and factories.
I live in Brazil, and electricity is as reliable as in the US and Europe.