No, I don't think that about trying new foods. But I do think that trying new foods is on a more trivial level of openness to new experiences. When you've done it enough, it's all the same experience.
I don't mean the food all tastes the same, but rather, you've adapted to the idea of trying unfamiliar foods. At this point, every new food you try has a risk-reward where you could feel somewhere between extreme disgust or delight on either end. And people who are more open to trying new foods just weigh the reward higher than the risk. Conversely, less open people will weigh the risk higher, or they just might not care. Maybe they think, "Food doesn't move me that much. It doesn't make me nearly as happy as my sheep." (Of course, maybe they don't know because they've never tried sesame chicken.)
I don't mean the food all tastes the same, but rather, you've adapted to the idea of trying unfamiliar foods. At this point, every new food you try has a risk-reward where you could feel somewhere between extreme disgust or delight on either end. And people who are more open to trying new foods just weigh the reward higher than the risk. Conversely, less open people will weigh the risk higher, or they just might not care. Maybe they think, "Food doesn't move me that much. It doesn't make me nearly as happy as my sheep." (Of course, maybe they don't know because they've never tried sesame chicken.)