Maybe this is my millennial spoiled-for-choice nature, but that seems very strange to me. Though certainly it was (is?) similar in older generations here (overheard in the 80s: "pasta? no, no, we don't eat that foreign muck, it's meat and two veg in my house").

But if I lived somewhere where there are noticeable varieties of rice with local characters, it seems more fun to at least be open to trying them rather than stick with one for my life. Same with fresh pasta variations, olives etc in Italy, say.

Even for things like bread and coffee, I'll usually buy different kinds just to mix things up. Sourdough and Columbian today, rye and Ethiopian next week. I don't really have a "usual" of anything much that I'd be disturbed by changing to an alternative. Sometimes you get hits and occasionally misses, but that just means the you appreciate the hits more!