As others have been, autism covers a wide variety and combination of traits and potential issues. I have two autistic nephews. I couldn’t see one ever going on such a trip. But my other, he was an exchange student in China (pre-covid) for a year in high school. He is definitely quirky, but apparently his quirks fit in much better over there.
He actually was going to live and work over there after college, but his flight was just a couple of days after they shut the borders down for covid. His job tried to wait for a few months, but eventually it was a no go.